The heartstopping conclusion to the Alliance of Light series brings Lysaer's army of Light to besiege the great citadel of Alestron. Master of Shadow, Arithon, with barely a moment's recuperation from his victory over the necromancers, has discovered that young Jeynsa s'Valerient whom he has sworn to protect, has joined the ranks of his disowned allies within the threatened citadel. Worse, following a failed rescue attempt, his beloved Elaira, his double, Fionn Areth, and the spellbinder Dakar are also trapped within Alestron's walls. The chancy wiles of Davien the betrayer must spirit Arithon across the enemy lines to attempt a bold and perilous rescue mission.