When a mysterious kidnapping unleashes chaos aboard a generation ship, humanity’s very purpose is at stake. From the author of LA Times Book Prize finalist Esperance comes an inventive, twisty thriller that hurtles through the stars—perfect for fans of Blake Crouch, Rob Hart, and Andy Weir.

Turn back now.

Faisal Vasconcelos, fifth-generation security officer of the interstellar Archimedes, doesn't think much can surprise him in these well-trodden halls. Then a bizarre kidnapping case exposes a shipwide danger that could change the entire trajectory of their seven-generation journey.

Faisal must search incubators, interrogate politicians, and climb spokes that jut into the stars themselves to uncover the truth. When he enlists the help of a beguiling astronomer, he might just find answers to the questions he didn’t know he needed to ask.

With inventive worldbuilding, breakneck pacing, and an interrogation of timely topics from reproductive rights to surveillance states, this sci-fi thriller casts a sharp light on our future that reflects all the way back to our present.