When Destina Rosethorn and her companions were transported to a time centuries before their birth --- to the days of the Third Dragon War --- the Graygem of Gargath brought chaos to the battlefield and changed the course of history. Upon returning to the Inn of the Last Home, where their journey began, Destina’s party discovered a world completely changed. The forces of evil now hold sway over their land. The River of Time is rising, flowing inexorably toward the present day. Destina and her friends must make one last, desperate attempt to restore time’s river to its proper channel. If they do not succeed, the altered past will sweep over the present until no trace of their old world remains.

A clash of powerful magical forces sets off the Graygem of Gargath, sending Destina Rosethorn and her companions deeper into the past than she intended --- to the age of Huma Dragonsbane and the Third Dragon War. Now, with the Device of Time Journeying shattered, they must find another way back to their own era before the Graygem irrevocably alters history and the Third Dragon War ends in defeat for the forces of good. While the battle rages on, Destina tries desperately to make amends and prevent disaster. Raistlin and Sturm encounter their heroes, Huma and Magius, and must reconcile the myths with the men. And Tasslehoff, shocked that the Knights of Solamnia have never heard of dragonlances, sets out to find the famed weapons.

Destina Rosethorn believes herself to be a favored child of destiny. But when her father dies in the War of the Lance, she watches her carefully constructed world come crashing down. She loses not only her beloved father but also the legacy he has left her: the family lands and castle. To save her father, she hatches a bold plan --- to go back in time and prevent his death. First, she has to secure the Device of Time Journeying. But to change time, she’ll need another magical artifact --- the most powerful and dangerous artifact ever created. Destina’s quest sets in motion a chain of disastrous events that threaten to divert the course of the River of Time, alter the past and forever change the future.