All Amina wants is to keep her brother safe, but how far is she willing to go?

Alone in a world turned hostile, Amina and her brother Aiden cling to safety in their underground bunker.
But when a new law demands every citizen take the mark and bow to the state religion, their refuge becomes a cage. Obedience means betraying their faith. Defiance means prison—or death.

Then Amina uncovers a coded message that could change everything. The clock is ticking.