Creating an undead dragon through magical fusion requires a sacrifice. One unfortunate dragon had been chosen for this purpose. Its appearance was horribly disfigured, and its flesh rotten like a zombie's. The humans, terrified of this monstrosity, decided to chain it within a dark stone tower. But this was a mistake. Determined to take revenge on its captors, the dragon broke free of its fetters with a mighty roar, filling the tower with red-hot flames of vengeance.