The Orb of Wrath
Azuharr, the black dragon, knew that Tazar, the silver dragon, was nearby and also that he was becoming more powerful every day. Soon he would be more powerful than him. He also understood that Tazar had not forgotten what happened that afternoon nearly a thousand years ago, nor the location of the cave where an immense treasure was guarded. Azuharr had to find him. Time was running out.
He sensed that he had hidden in one of the human kingdoms. He was convinced that he would be helping, in some way, the prosperity and stability of the kingdom. So he devised a plan. If he could significantly destabilize a kingdom and Tazar was in it, he would have to show himself to help the humans. Then he could surprise him and kill him before it was too late.
He only had to decide in which kingdom to begin.