This is the first chapter of the big one, the one I've been thinking about since this whole storyline got started. The Gai-Shift Encyclopedia defines it as:

Pit, The (Gai Shift): Originally formed when Goldwaith Laboratory kludged its basement MIs together with those of the nearby Central London Precinct House (where Drummand works). The Goldwaith researchers began to see anomalies form, with MI sexual servicing tracks being extended into the London depths. Women who wandering into this unknown eventually return groggy and sexually sated. Justice was quick to react, and began surrendering its more hardened criminals to the Pit. Reports are now coming in from all over the city of women being snatched and dragged below for some quite capital (if not lengthy (and we mean that in every sense)) entertainments.

So come with us, dear reader, as we light our chemical torches, check our ropes and gear, and descend into this strange and wonderful world!

Enjoy!