In the explosive final installment of the series, Sarah is drawn back into the search she hoped was behind her, this time for her missing nephews. When she finally finds them, relief quickly turns to dread. Marked by forces she doesn’t understand, their transformation may be the key to everything… or the catalyst for Earth’s destruction.

This thrilling conclusion brings the series to a powerful and unforgettable end—all actions have a cost, and the final Reckoning demands they are paid in full.