Kit Rodriguez and Nita Callahan uncover a mysterious "message in a bottle," holding the first clues to the secrets of Mars's long-lost inhabitants. When the bottle is uncorked and a life form from another era emerges, wizardry might not be enough to handle the strange events that unfold.

The Martians seem friendly, but they harbor a plan that could reshape more than one world. As the shadow of interplanetary war looms over Earth and Mars, Kit and Nita must master an ancient synergy binding them to Mars and its last inhabitants.

If they fail, the history that left Mars lifeless could repeat itself on Earth. Can they prevent the past from becoming the future?