Distrust is the fifth scenario in Clash of the Dragons, the fourth part of Heroes Chronicles. When Mutare's dragons, including the new crystal dragons, invade Erathia, AvLee's forces rush in to aid their allies. But since the independent border towns haven't received word from anyone, they see all outsiders as invaders. Tarnum is forced to fight the Erathians in order to save them from Nighon's armies. Aspen is still trying to find evidence of a traitor, but ever since he was injured in an ambush, he has refused to speak to Tarnum, and uses his assistants to carry messages to him instead.