All her lives, Abi has run from her pain. Now she's run out of time.

Abi runs so fast she skips across universes. That came in handy when she burned down her life with her girlfriend, Kit. Ever since, Abi has been running from reality to reality, starting over with a different Kit. When her new reality begins to collapse, Abi discovers a shocking truth.

An unknown force destroys every timeline one by one. Every universe is doomed, including the one Abi fled originally. she tries to get back to warn her Kit but before she can, she's trapped in another strange reality with no way to escape.

The pain she's suffered and caused finally catches up to her, and so does the shadow trailing her across creation. With time and space running out, Abi faces the darkness eating away the multiverse. To her horror, she learns it may be the same she carries with her.