Jack Joyce spent six years escaping—escaping his life, escape time, escaping the madness of his brother, Will. But when he finally returns home, it turns out his brother isn’t quite so mad. Will has created a time machine, one with the potential to save humanity. War? Preventable. Natural disasters? Stoppable.

Except for one tiny problem… his machine will also cause the end of time as we know it. Now Jack has just one chance to turn back time, to fix what was broken, to save the world.

In nineteenth-century Boston, a young doctor on the run from the law falls in with a British confidence artist. Together--and with dire consequences--they bring back to the light something meant to be forgotten.