In a society where women rule and men are almost extinct, River discovers a dark secret that will change her world as she knows it. Now in paperback!

In River's world, XYs only exist in stories. A deadly virus wiped out the entire male population two generations ago, along with things like war and violence. Thanks to the Global Agreements, River's life is simple, safe, and peaceful…until the day she comes across a body in the road—a body that is definitely male and definitely still alive. River isn't prepared for this. There's nothing in the Agreements about how to deal with an XY, but one lies before her, sick, suffering, and entirely at her mercy.

River can kill him, or she can save him. Either way, nothing will ever be the same.

• Paperback: 352 pages
• Publisher: Sourcebooks (October 1, 2019)
• ISBN-13: 978-1492678816