Unwilling to be separated from Mal, Alina hatches a plan to join him on a perilous expedition through the Fold. Kaz chases a lead on a lucrative job.

Ensconced in the lap of luxury among the Grisha, Alina begins her training. The Crows — Kaz, Inej and Jesper — prepare for their risky journey.

In the depths of the Fold, Kirigan demonstrates the scope of Alina's powers, while the Crows cross paths with a stowaway amid a do-or-die undertaking.