Vasilisa and her friends find themselves on Ostala. Once every millennium, the Scarlet Flower—the time-magic heart of our planet—blooms here. To save Eflara from being consumed, the seven Keepers of the Time Keys must make a unanimous wish. But a rift opens up among the Key-holders, escalating into a struggle—a fight to the death. Among Vasilisa’s new friends is Fesh Dragotsiy, the nephew of Astragor—the most powerful enemy of the Time-Mages. Fleeing a terrible family legacy, the boy escaped his uncle to forge a life of his own; but now, as the battle for Time gathers momentum, whose side will he choose?