The Licensed Imposter Problem

First, the flavor and framing. You go to sleep as normal, but when you awaken, you find yourself transported to a dark, underground lair, all tunnels and chitinous furnishing, ornamented with distended protuberances and segmented geometries. You glance around for any indication of what’s going on, and then… Your abductors reveal themselves as changelings who’ve been surveilling you and those…