The Gemini Thief is a serial kidnapper, who takes three boys and holds them captive from June 1st to June 30th of the following year. The June Boys endure thirteen months of being stolen, hidden, observed, and fed before they are released, unharmed, by their masked captor. The Thief is a pro, having eluded authorities for nearly a decade and taken at least twelve boys.

Now Thea Delacroix has reason to believe the Gemini Thief took a thirteenth victim: her cousin, Aulus McClaghen.

Over the last year, Thea has begun to wonder something sinister, something repulsive, something unbelievable, and yet, not impossible:

What if her father is the Gemini Thief?