Score, Helaine, and Pixel's thrilling search for who or what has brought them to Treen, a planet on the outer ring of the Diadem. Clues lie inside the tower of a cunning wizard and within a stranger's rhyming riddles. But the quarrelsome trio is ever doubtful of whom to trust-even among themselves. Danger awaits them at every turn as they battle angry mobs, bloodthirsty wolves, and a conniving wizard. Yet their toughest challenge is learning to band together as a team, their only hope against the perilous spells of their one true enemy.