After the rodeo the girls met their dates outside the front gate. Tex introduced his brother Jack, a tall freckle-faced boy, whose friendly manner immediately put Alice at ease. Quickly Nancy warned the boys about Bursey and Diamond.

  Dave looked worried and Jack spoke up. “I don’t know what this is all about, but no one will get Alice away from me until I turn her over to Nancy after the dance!”

  Nancy and Dave led the way to the ranch wagon. “Shorty said he’d come along later,” he remarked.

  On the drive to the barbecue grounds, Nancy quietly told him her deduction about the treasure. Dave was excited and said he hoped she was right.

  About a mile beyond Tumbleweed he parked in a grove of willow trees beside a narrow stream. The grounds were set with many long wooden tables and benches, and overhead were strings of small electric lights.

  “Come on, gals,” said Tex. “We’re goin’ to put on a big feed!” He led them toward a long serving table. Four men passed by, each carrying a shovel bearing a big burlap-wrapped package. These were dumped onto the table.

  “There goes the meat,” said Bud. “It’s been buried in the barbecue pit since last night.”

  “Cookin’ nice an’ slow over hot stones,” Tex added.

  “When the burlap fell away, the fragrance of the steaming meat was irresistible. All the girls enjoyed generous servings, with a spicy relish and potato salad.

  By the time they had finished their desserts of ice cream and Nancy’s chocolate cake, the colored lights overhead came on. A stout middle-aged man mounted the dance platform in the center of the grove and announced that he was master of ceremonies. Seeing Bud’s guitar, he called on him for some cowboy songs.

  Bud played “I’m a Lonesome Cowboy,” and everyone joined in enthusiastically. He followed with a number of other old favorites. Finally he strummed some Gold Rush songs, including “Sweet Betsy from Pike.”

  The cheers and applause had not yet died down when Shorty stepped onto the platform. Ignoring the master of ceremonies, he leaned toward the microphone and said, “Folks, how’d you like me to do my imitations?”

  At the scattered handclapping and whistles, the stout man nodded and stepped back. Shorty cupped his hands around his mouth, closed his eyes, and the long mournful hoot of an owl filled the night.

  “He’s really good,” Bess whispered.

  “I’ll bet he can also do a whining dog,” Nancy said meaningfully.

  Next, the cowboy announced a coyote and produced several realistic howls. Suddenly in mid-howl he spotted Nancy in the audience. His jaw dropped and he stood silent before the microphone. Staring at her, he stammered that his act was over and left the platform. The girls exchanged baffled glances.

  Dave grinned. “That was one surprised coyote, all right! He thought his pals had got rid of you, Nancy.”

  Just then a band of three musicians began tuning up and a square-dancing contest was announced. Alice suggested that the four couples enter as a set, and the others agreed enthusiastically.

  Of the four groups in the contest, Nancy’s was called first. The young people lined up on the platform, facing each other in couples. At the sound of the lively music they began to dance. The fiddle player called the steps and played his tunes fast.

  “Swing your partners and a do-si-do!”

  Whirling past the edge of the platform, Nancy glimpsed Shorty glowering at her.

  When the breathless dancers returned to their table, Nancy told the others of the incident. “It’s going to be hard to shake Shorty from now on. I’m afraid he and his pals will watch us so closely we’ll have no chance to go after the treasure.”

  While the other sets of dancers competed, Nancy pondered on how to make sure the girls were not followed to the cliff houses.

  At the end of the contest, the crowd voted by applause and the Shadow Ranch group won easily. Nancy was sent to the platform to claim the prize.

  The master of ceremonies handed her a pink slip of paper. “You take this to the food table over yonder, young lady, and they will give you and your friends a big ice-cold watermelon!”

  Nancy thanked the man, then turned to the audience and said, “I would like to make an announcement that I believe will interest everybody in this area. My friends and I think we know where the famous long-lost Valentine treasure is hidden.”

  An excited rustle ran through the crowd and cries of “Where?”

  Nancy smiled. “I won’t say anything more about it now, but tomorrow a few Shadow Ranch men are going out to do some digging.”

  As Nancy hurried from the platform, she saw Sheriff Curtis making his way toward her. He spoke of his futile search on the mountain and his regret that the desperadoes were still at large. “I’m sure glad you outwitted ’em this afternoon Watch your step.”

  Then he joined the young people at their table.

  George asked Nancy, “What was the meaning of that announcement you made?”

  In a low voice the young sleuth said, “Everybody look happy—not as if we’re talking about anything important-and I’ll explain.”

  Dave obligingly gave a broad grin. “I’ll collect our prize.”

  He soon returned and began cutting and serving the watermelon. Meanwhile, the others listened, smiling and laughing as Nancy told them that the Shadow Ranch cowboys were to act as decoys while the girls went to the cliff dwellings to search for the treasure.

  “Shorty will no doubt alert Bursey and Diamond and they’ll be keeping an eye on the ranch.”

  Sheriff Curtis praised Nancy for her plan and said he would follow the decoy group. “I’ll nab the varmints when they move against the cowboys.”

  His blue eyes were sober as he said, “I can see you’re a capable gal, Miss Drew, but you got to be extra careful from now on, ’cause those thievin’ hombres’ll want to keep all o’ you tenderfeet quiet.”

  “We’ll stay close to the girls,” Dave promised, and the cowboys permitted no one to cut in during the dancing that followed.

  When the party was over, Jack said good night to Alice at the ranch wagon and promised to telephone her soon. As Nancy and her friends climbed into the car, Shorty came hurrying up to join them.

  Dave drove to the corrals behind the arena where Tex and Bud picked up the horses and trailer. Shorty got out, too, and walked into a phone booth at the edge of the parking area. He did not stay long.

  “I’ll bet he called Diamond and Bursey to tell them what I said,” Nancy declared.

  As Dave started the drive home, Shorty questioned Nancy about her announcement. She laughed and replied that he would see later what she meant. Before he could ask any more questions, Bud struck a chord on his guitar and started a cowboy song. Shorty gave up talking and sat sullenly while the others sang all during the ride.

  Although she joined in the songs, Nancy’s thoughts dwelled on the plan she had made for proving to Mrs. Thurmond that the phantom horse was a trick. She was pleased to note that the moon had gone behind heavy clouds and the night was very dark.

  When they reached the ranch, the cowboys hurried off to relieve Ed Rawley and the foreman who had done guard duty during their absence. The girls went to the house where they found Mrs. Rawley in the lighted living room. Chief lay by the fireplace.

  “I felt safer with him in here,” Aunt Bet explained.

  Nancy asked the others to accompany her to the kitchen. There they found Mrs. Thurmond seated at the big table reading a magazine.

  “I believe I can show you now how the phantom was made to appear,” Nancy said.

  The cook looked skeptical, then exclaimed nervously as Nancy turned out the lights. With a mysterious smile, she slipped outside and hurried down the portico. Soon she returned. “All set? Look through the screen door.”

  Her friends complied and stared into the darkness. Suddenly Mrs. Thurmond gave a scream and Mrs. Rawley gasped. Bobbing toward them, about three feet above the portico, were tiny glowing specks!

  “Oh!”
moaned the cook. “Phantom spots! Take ’em away!”

  Nancy opened the door and the shining specks floated into the room!

  CHAPTER XVIII

  The Black Phantom

  As the watchers stared amazed, the glowing specks stopped floating forward and hung in the darkness.

  “Oh!” Mrs. Thurmond quavered. “They shine just like the ghost horse!”

  Nancy switched on the light. Before them stood Chief, a large rubber ball clutched in his jaws.

  Smiling at the flabbergasted onlookers, Nancy said, “Do you see how the phantom trick was worked?”

  “I do,” George said promptly. “Phosphorescent paint on the dog’s teeth.”

  “Where are the specks now?” Mrs. Thurmond asked as Chief dropped the ball.

  “They don’t show when the lights are on. At the time Chief disappeared—after he chased the phantom horse—the spots were on his teeth,” the young sleuth explained. “I thought perhaps he had bitten the ghost, but when I examined him in daylight, of course I found no evidence.”

  “The gang must have washed him,” remarked Bess.

  “But they never thought of his teeth,” Nancy said, “and fragments of the paint remained.”

  “How did you get onto the idea?” Aunt Bet asked.

  Nancy reminded the others of her suspicion that Chief had been muzzled and taken away because the gang feared there was a clue to the apparition on him.

  “I learned in chemistry class that phosphorescent paint glows in the dark after it first has been exposed to light,” she went on. “I remembered that each time I’d seen the phantom horse there had been a light in the spring house just before. I put two and two together and decided that the apparition was a real horse. He was covered with a soft thin material which had been coated with phosphorescent paint and exposed to light in the spring house by one of the gang members.”

  Mrs. Thurmond drew a deep breath and turned to Nancy. “You’re a downright marvel, that’s what you are, young lady!”

  Nancy blushed. “You’ll stay now, won’t you?” And the others all added their pleas.

  “ ’Course I will,” Mrs. Thurmond declared stoutly. “You just show me the varmint that’s been doing this no-good trick and I’ll give him a piece o’ my mind!”

  Before going to bed, Nancy told Aunt Bet and Uncle Ed of her plan for the following day. The rancher assured her he would cooperate. At breakfast the girls talked lightheartedly of their all-day horseback ride.

  “Where you gals fixin’ to go?” Shorty asked.

  “We’ll start up Shadow Mountain,” Nancy replied vaguely. “After that, we’ll see.”

  Mr. Rawley broke in to appoint Tex and Bud as his helpers on the “treasure” expedition.

  When the meal was over, Nancy took Dave aside and told him that if she and the other girls found Valentine’s hoard, they would light a fire on the lookout rock.

  “Good,” he replied. “Then I’ll drive down the valley in the truck and climb up to the cliff houses by the front steps to help you bring the treasure back to the ranch.”

  Half an hour later Uncle Ed, Tex, and Bud saddled up for their trip. Shorty hung around, eager to help as two pack horses were led out. One was loaded with digging tools and the other with supplies.

  “What’s the second animal for?” asked Sanders, who had been told the secret.

  The rancher owner grinned. “For the treasure.”

  The trio headed down the valley away from Tumbleweed. Shorty watched them for a minute, then hurried into the woods behind the ranch house. Strolling toward the stable, Nancy suspected that Bursey and Diamond were hiding among the trees, waiting to see which way the “treasure” party had gone.

  In the tack room, Dave helped Nancy pack small digging tools into a saddlebag and roll a spade in a blanket. The cowboy then saddled the girls’ horses and slung the gear aboard two of them. Mrs. Thurmond brought lunches which Dave added to a pack as Nancy called to her companions that everything was ready.

  Before they mounted, Nancy suggested that they cross the big meadow. “We’ll ride up Shadow Mountain from there.”

  “But it’s in the opposite direction from the cliff dwellings,” Alice whispered.

  “That’s the idea,” Nancy replied. “Just in case Shorty suspects a trick and decides to follow us.”

  Dave pulled out a stub of pencil and drew a map for Nancy on the back of an envelope. It showed a trail going east across the mountain to the cliff dwellings.

  Twenty minutes later the girls were heading up Shadow Mountain. As they jogged along the trail, Nancy studied the map and noted that Dave’s route began not far from the cabin.

  “We can go there first,” she said. “If the gang is on a wild-goose chase, now would be a good time to search for their hiding place.”

  Though the girls were eager to go on with their real purpose, they spent the morning wandering over various trails. “If anyone is following us, I hope he’ll think we’re just out for pleasure and give up the chase,” Nancy remarked.

  In early afternoon they stopped beside a stream to eat their lunch, then rode straight for the cabin. After half an hour, however, they were brought up short by huge boulders on the path.

  “A rockfall!” George exclaimed. “We’ll have to detour.”

  The riders backtracked, then crossed a steep stony slope, so treacherous that they were forced to dismount and lead their horses slowly. Finally, they reached clear trail again. It was midafternoon when Alice cried out, “There’s the cabin! I see the roof.”

  The foursome rode up the slope and ground-hitched their horses. Cautiously they made their way toward the cabin. The door was open and no one was inside.

  Nancy led the way behind the cabin and noticed again how close the back window was to the brush screen and rock wall.

  “What a funny place to put a window!” Bess remarked.

  “Yes. That’s one of the reasons I feel sure a hiding place is back here somewhere,” Nancy replied. “I think the window was used as an escape exit from the cabin.”

  The girls examined the close-growing chaparral. A few feet to the side of the window, George discovered a break in the thorny brush.

  Nancy slipped into it, and one by one the girls struggled through and entered a narrow cleft in the rock wall.

  A few yards inside the opening Nancy pointed out horseshoe, paw, and shoe prints. “Let’s follow the prints,” she suggested. “I have a hunch this path might lead to Valentine’s hideout.”

  The girls hurried to their mounts, and soon were riding through the narrow pass with only a strip of blue sky visible above them.

  After a while even that was blotted out by an overhang. The path grew gloomy and wound sharply around jagged outcrops.

  By the time the riders saw daylight again, the sun was low in the sky. They rode up a gentle slope and found themselves on a high plateau. Some distance ahead was a long, straight rocky parapet about twelve feet high.

  Nancy reined up sharply. “Look!” she cried out. Built against the wall was a three-sided stone enclosure with an old wooden gate. Inside pranced a handsome black stallion.

  “The phantom horse!” Nancy exclaimed.

  As the four riders approached, the animal whinnied and reared, backing toward a crude lean-to stable.

  “Maybe the trick trappings are in there,” George said.

  Nancy dismounted quickly, opened a wooden gate, and slipped into the enclosure. The black steed nickered nervously and shied away, but Nancy talked soothingly to him as she walked forward.

  There was a pile of hay in the corner of the stable. Nancy felt under it. In a few moments her fingers encountered something soft and she pulled out a bundle of white material. She carried it outside and closed the gate behind her.

  “The phantom costumel” Bess exclaimed as Nancy shook out the filmy cloth.

  “It’s Japan silk, a very thin material used for theatrical effects,” Nancy told the girls. She tucked the cloth into her sad
dlebag.

  “This stable looks old,” Bess remarked. “I don’t think the gang built it.”

  “You’re right!” Alice exclaimed, and pointed to a barely discernible heart scratched on the gate.

  “Then Valentine’s hideout must be near here,” Nancy said.

  As the girls looked around, Nancy noticed a huge rock jutting from the far end of the parapet. With a thrill of excitement she recognized the lookout point. “We’re on top of the cliff houses!” she exclaimed. “Let’s get the wood ready for the fire, then start searching for the treasure.”

  Beyond the lookout rock the girls could see a grove of trees. They rode over and tethered their horses. The wind moaned through the fir trees and Nancy shivered. She took her sweater from the saddle horn and threw it over her shoulders. It was nearly dusk, so the girls hung flashlights on their belts.

  Then they collected wood for the signal fire and carried it to the lookout rock just as the sun set. Nancy was the last to make her way off the rock. To one side of it was a short flight of worn steps going down to the top row of cliff apartments.

  Nancy was about to lead the descent when they heard the howl of a coyote. She stopped short.

  “What’s the matter?” asked Alice.

  “Sh—listen!” Everyone froze. “I hope that’s a real coyote,” said Nancy.

  Bess gasped. “You mean Shorty—”

  “If the gang has discovered our ruse, they may have backtracked and traced us here,” George said.

  Nancy nodded. “We’d better not turn our lights on.”

  Hugging the parapet, the girls went down the steps to the narrow walk which ran in front of the apartments. To their left was a sheer drop-off.

  For a moment they stood still, breathless at the height and the silence. Suddenly there came a thump from the first room.

  Bess grabbed George’s arm and Alice gasped. Quietly Nancy stepped to the open doorway and peered into the gloom.

  A man was lying on the floor!

  CHAPTER XIX

  The Cliff’s Secret