Caliban's War · Chapter 52
Rescue of Mei Meng
Holden's crew, with Bobbie Draper and Prax Meng, infiltrates a secret Protogen facility on Io to rescue abducted children including Prax's daughter Mei from protomolecule experiments.
Outcome
Mei and other children are rescued; Dr. Strickland is killed; the protomolecule hybrid threat on Io is neutralized.