Matilda Case might just be the only person left alive who can save the world...

Trapped beneath enemy fire with time running out to save her friends, family, and the world itself, Matilda Case jumped into the unknown—and traveled back in time.

The only problem? Trying to save a man in the past so his death won't destroy the future, didn't go as planned.

Now she's stuck in an alternate reality where her enemies are still alive. They aim to wage bloody war to destroy Matilda—unless she surrenders the control of time to them.

To make things worse, her real world is in danger of disappearing forever.

Matilda must make impossible decisions, trust familiar strangers, and fight to keep the power of time out of the wrong hands. If she makes the right choice, she'll save the world. But the wrong choice will destroy her—and everything she loves...