From Pathfinder #180: The Smoking Gun, which isn't enabled.

Improved Hijack Undead

FEAT 14

Prerequisites Clockwork Reanimator Dedication; Hijack Undead

Undead creatures find it all but impossible to resist your commands. When you use Hijack Undead, if the undead fails its save, it becomes your minion for 10 minutes. If it critically fails, it becomes your minion for 24 hours.

Pathfinder #180: The Smoking GunOGL