Alone in the galaxy, and connected through a past they don't remember, Val and Note must learn the truth ... before it's too late.

Val narrowly escaped the Cell, a race of gene-splicers. Finding a new home and life for himself, he struggles to remember who he is and where he comes from. With no memory other than his name, he's shocked when a Sentinel-an ancient drone from a long-dead alien race-brands him with the Mark of Eden, a symbol feared throughout the galaxy.

Note can't forget her brush with the Cell or her desperate escape. Strange words echo in her mind, and she's determined to discover what they mean. When a Sentinel points her toward Val, she's off to reunite with the boy she can't remember.

Only knowing their past is connected to the Mark of Eden, the two must forge friendships, learn who they are, and uncover the galaxy's secrets while enduring a desperate struggle for survival against the Cell. But the dark truth they find might be better left buried.