After dueling with a dragon and a demon, Maimun knows he must destroy the stone that has kept him on the run for most of his life. The question now is how. With Joen by his side, Maimun journeys to the Tower of Twilight to beg famed wizard Malchor Harpell for answers. But Harpell's help comes at a steep price. Friends become enemies. Lost secrets come to light. And deep in the shadows, the sentinels are watching, scheming to save the stone - even if it means someone must die.