Professor Nichols carefully turned the cardboard over and saw the photograph.

  “This very house!” he said. “I’m beginning to get some ideas.”

  Grandfather looked at Violet and asked, “You still have the coin case, don’t you? Will you get it for the professor?”

  Violet went to the hall stairs and ran up to her room.

  The professor could not sit still. He pushed back his chair and walked back and forth, waiting for Violet. He did not wait long. She was soon back and put the blue case into his hand.

  The professor could not speak for a minute. He said, “Of course I know this! A little girl—Stephanie Shaw—made this. I knew her father. I helped her a little on this collection myself.”

  Mr. Alden said, “Then we are right. This is the Blue Collection.”

  “It certainly is. I never knew what became of it after the Shaws went to France. Has it been hidden here all this time? I can’t understand why no one ever claimed it.”

  “The children learned that the Shaw family died in France many years ago,” Mr. Alden said. “Benny found Stephanie’s journal hidden behind a loose board in a closet wall.”

  “Rory helped, too,” Benny said.

  Rory added, “The empty coin case was there, Granda.”

  “We’ll show you all the clues,” Benny offered.

  Professor Nichols said, “What a story! It is a wonderful collection that might easily have been lost forever. Oh, I don’t like to think that I might have missed this collection entirely!” He shuddered. “I would indeed like to see all of the things you found.”

  “Here is Stephanie’s journal,” said Violet. “I brought that down, too.”

  “It is her writing,” said Professor Nichols. “And you children worked out the mystery? I never could have done it.”

  “What do you think we should do with this collection?” asked Henry. “Should we keep it or sell it? Would anybody buy it?”

  “I would!” said Professor Nichols. “There are valuable coins in this collection. It would give me great happiness to own it. However, I don’t want to take the famous Blue Collection away from you children.”

  Benny said, “You knew Stephanie. I think you should have it.”

  “I’ll tell you what I’ll do,” the professor said. “I’ll pay you for the Blue Collection. Then I’ll select some special coins for each one of you.”

  He quickly pulled five coins off the blue cloth from different places on the card. He gave one to each of the Aldens and Rory.

  “There!” he said. “You Aldens can start your own collection. I think you’ll enjoy it.”

  “Start a collection with four coins?” exclaimed Benny.

  The professor nodded. “You’ll be surprised how quickly you’ll add more coins. The minute people know that you are making a collection, they will help you.”

  “I think I’ll collect Canadian coins,” Rory said. “I’m visiting the Aldens. I’m from Canada.”

  “You are?” said Professor Nichols with a sharp look at the boy. “Maybe you have a Canadian five-cent piece with a beaver on it. And there’s a famous silver dollar from 1947 with men paddling a canoe. Some of the early fur traders, I guess. Yes, you can have an exciting collection.”

  That evening at dinner, Professor Nichols looked at Benny and Rory. He said, “You boys are hiding part of the mystery about the Blue Collection from me.“

  “We’re not!” Benny exclaimed. “We showed the journal and the clues and told you about the Jenny Wren Shop. That’s all there is.”

  The professor shook his head. “I’ll tell what I’m wondering about. How did you boys happen to find the empty coin case and the papers in the closet wall?”

  Benny said, “That’s easy. Vacation came and I was lonesome.”

  “You were?” asked the professor and laughed. “I can’t believe that! But I still don’t understand.”

  “Well, you see,” Benny explained, “all my friends were away and I was lonely. So Grandfather invited Rory to come.”

  “That’s right,” Rory said. “Mrs. McGregor knows my family. That’s how it happened.”

  “Of course Rory had to have the room next to mine,” Benny went on. “We didn’t know anything about Stephanie then or that it had been her room.”

  Professor Nichols smiled. He could see that the only way to get the whole story was to let Benny tell it his way.

  Benny went on, “We had rooms next to each other. That made us think of a telegraph between them. We thought we’d run a cord through holes in our closet walls.”

  “It was a good idea,” Rory said. “But then we found all this stuff in the hole. Say, Benny, we never did finish our telegraph!”

  “That’s right,” Benny exclaimed. “I guess our next mystery is how to make it work.”

  The other Aldens and Professor Nichols all laughed.

  “If you can’t find a mystery, make one,” the professor said.

  Benny added, “And I’ll tell you something else, I’m not lonesome anymore.”

  “Good!” said Grandfather. “That’s all I want.”

  About the Author

  GERTRUDE CHANDLER WARNER discovered when she was teaching that many readers who like an exciting story could find no books that were both easy and fun to read. She decided to try to meet this need, and her first book, The Boxcar Children, quickly proved she had succeeded.

  Miss Warner drew on her own experiences to write the mystery. As a child she spent hours watching trains go by on the tracks opposite her family home. She often dreamed about what it would be like to set up housekeep-ing in a caboose or freight car—the situation the Alden children find themselves in.

  When Miss Warner received requests for more adventures involving Henry, Jessie, Violet, and Benny Alden, she began additional stories. In each, she chose a special setting and introduced unusual or eccentric characters who liked the unpredictable.

  While the mystery element is central to each of Miss Warner’s books, she never thought of them as strictly juvenile mysteries. She liked to stress the Aldens’ independence and resourcefulness and their solid New England devotion to using up and making do. The Aldens go about most of their adventures with as little adult supervision as possible—something else that delights young readers.

  Miss Warner lived in Putnam, Connecticut, until her death in 1979. During her lifetime, she received hundreds of letters from girls and boys telling her how much they liked her books. And so she continued the Aldens’ adventures, writing a total of nineteen books in the Box-car Children series.

  The Boxcar Children Mysteries

  THE BOXCAR CHILDREN

  SURPRISE ISLAND

  THE YELLOW HOUSE MYSTERY

  MYSTERY RANCH

  MIKE’S MYSTERY

  BLUE BAY MYSTERY

  THE WOODSHED MYSTERY

  THE LIGHTHOUSE MYSTERY

  MOUNTAIN TOP MYSTERY

  SCHOOLHOUSE MYSTERY

  CABOOSE MYSTERY

  HOUSEBOAT MYSTERY

  SNOWBOUND MYSTERY

  TREE HOUSE MYSTERY

  BICYCLE MYSTERY

  MYSTERY IN THE SAND

  MYSTERY BEHIND THE WALL

  BUS STATION MYSTERY

  BENNY UNCOVERS A MYSTERY

  THE HAUNTED CABIN MYSTERY

  THE DESERTED LIBRARY MYSTERY

  THE ANIMAL SHELTER MYSTERY

  THE OLD MOTEL MYSTERY

  THE MYSTERY OF THE HIDDEN

  PAINTING

  THE AMUSEMENT PARK MYSTERY

  THE MYSTERY OF THE MIXED-UP ZOO

  THE CAMP-OUT MYSTERY

  THE MYSTERY GIRL

  THE MYSTERY CRUISE

  THE DISAPPEARING FRIEND MYSTERY

  THE MYSTERY OF THE SINGING GHOST

  MYSTERY IN THE SNOW

  THE PIZZA MYSTERY

  THE MYSTERY HORSE

  THE MYSTERY AT THE DOG SHOW

  THE CASTLE MYSTERY

  THE MYSTERY OF THE LOST VILLAGE

&
nbsp; THE MYSTERY ON THE ICE

  THE MYSTERY OF THE PURPLE POOL

  THE GHOST SHIP MYSTERY

  THE MYSTERY IN WASHINGTON, DC

  THE CANOE TRIP MYSTERY

  THE MYSTERY OF THE HIDDEN BEACH

  THE MYSTERY OF THE MISSING CAT

  THE MYSTERY AT SNOWFLAKE INN

  THE MYSTERY ON STAGE

  THE DINOSAUR MYSTERY

  THE MYSTERY OF THE STOLEN MUSIC

  THE MYSTERY AT THE BALL PARK

  THE CHOCOLATE SUNDAE MYSTERY

  THE MYSTERY OF THE HOT

  AIR BALLOON

  THE MYSTERY BOOKSTORE

  THE PILGRIM VILLAGE MYSTERY

  THE MYSTERY OF THE STOLEN

  BOXCAR

  THE MYSTERY IN THE CAVE

  THE MYSTERY ON THE TRAIN

  THE MYSTERY AT THE FAIR

  THE MYSTERY OF THE LOST MINE

  THE GUIDE DOG MYSTERY

  THE HURRICANE MYSTERY

  THE PET SHOP MYSTERY

  THE MYSTERY OF THE SECRET MESSAGE

  THE FIREHOUSE MYSTERY

  THE MYSTERY IN SAN FRANCISCO

  THE NIAGARA FALLS MYSTERY

  THE MYSTERY AT THE ALAMO

  THE OUTER SPACE MYSTERY

  THE SOCCER MYSTERY

  THE MYSTERY IN THE OLD ATTIC

  THE GROWLING BEAR MYSTERY

  THE MYSTERY OF THE LAKE MONSTER

  THE MYSTERY AT PEACOCK HALL

  THE WINDY CITY MYSTERY

  THE BLACK PEARL MYSTERY

  THE CEREAL BOX MYSTERY

  THE PANTHER MYSTERY

  THE MYSTERY OF THE QUEEN’S JEWELS

  THE STOLEN SWORD MYSTERY

  THE BASKETBALL MYSTERY

  THE MOVIE STAR MYSTERY

  THE MYSTERY OF THE PIRATE’S MAP

  THE GHOST TOWN MYSTERY

  THE MYSTERY OF THE BLACK RAVEN

  THE MYSTERY IN THE MALL

  THE MYSTERY IN NEW YORK

  THE GYMNASTICS MYSTERY

  THE POISON FROG MYSTERY

  THE MYSTERY OF THE EMPTY SAFE

  THE HOME RUN MYSTERY

  THE GREAT BICYCLE RACE MYSTERY

  THE MYSTERY OF THE WILD PONIES

  THE MYSTERY IN THE COMPUTER

  GAME

  THE MYSTERY AT THE CROOKED

  HOUSE

  THE HOCKEY MYSTERY

  THE MYSTERY OF THE MIDNIGHT DOG

  THE MYSTERY OF THE SCREECH OWL

  THE SUMMER CAMP MYSTERY

  THE COPYCAT MYSTERY

  THE HAUNTED CLOCK TOWER

  MYSTERY

  THE MYSTERY OF THE TIGER’S EYE

  THE DISAPPEARING STAIRCASE

  MYSTERY

  THE MYSTERY ON BLIZZARD

  MOUNTAIN

  THE MYSTERY OF THE SPIDER’S CLUE

  THE CANDY FACTORY MYSTERY

  THE MYSTERY OF THE MUMMY’S

  CURSE

  THE MYSTERY OF THE STAR RUBY

  THE STUFFED BEAR MYSTERY

  THE MYSTERY OF ALLIGATOR SWAMP

  THE MYSTERY AT SKELETON POINT

  THE TATTLETALE MYSTERY

  THE COMIC BOOK MYSTERY

  THE GREAT SHARK MYSTERY

  THE ICE CREAM MYSTERY

  THE MIDNIGHT MYSTERY

  THE MYSTERY IN THE FORTUNE

  COOKIE

  THE BLACK WIDOW SPIDER MYSTERY

  THE RADIO MYSTERY

  THE MYSTERY OF THE RUNAWAY

  GHOST

  THE FINDERS KEEPERS MYSTERY

  THE MYSTERY OF THE HAUNTED

  BOXCAR

  THE CLUE IN THE CORN MAZE

  THE GHOST OF THE CHATTERING

  BONES

  THE SWORD OF THE SILVER KNIGHT

  THE GAME STORE MYSTERY

  THE MYSTERY OF THE ORPHAN TRAIN

  THE VANISHING PASSENGER

  THE GIANT YO-YO MYSTERY

  THE CREATURE IN OGOPOGO LAKE

  THE ROCK ’N’ ROLL MYSTERY

  THE SECRET OF THE MASK

  THE SEATTLE PUZZLE

  THE GHOST IN THE FIRST ROW

  THE BOX THAT WATCH FOUND

  A HORSE NAMED DRAGON

  THE GREAT DETECTIVE RACE

  THE GHOST AT THE DRIVE-IN MOVIE

  THE MYSTERY OF THE TRAVELING

  TOMATOES

  All rights reserved under International and Pan-American Copyright Conventions. By payment of the required fees, you have been granted the non-exclusive, non-transferable right to access and read the text of this ebook onscreen. No part of this text may be reproduced, transmitted, downloaded, decompiled, reverse engineered, or stored in or introduced into any information storage and retrieval system, in any form or by any means, whether electronic or mechanical, now known or hereinafter invented, without the express written permission of the publisher.

  This is a work of fiction. Names, characters, places, and incidents either are the product of the author’s imagination or are used fictitiously. Any resemblance to actual persons, living or dead, businesses, companies, events, or locales is entirely coincidental.

  copyright © 1973 by Albert Whitman & Company

  ISBN: 978-1-4532-0822-9

  This 2010 edition distributed by Open Road Integrated Media

  180 Varick Street

  New York, NY 10014

  www.openroadmedia.com

 


 

  Gertrude Chandler Warner, Mystery Behind the Wall

 


 

 
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