Was seeing how the brothel worked, and triggered a bug. The game "lets" you put progeny into the brothel, but it doesn't work. If you pick a "slave" status (actual slave, or necromancy created progeny) they will take up a slot, do nothing, and can be purchased back to free up the slot again, but if you use a regular progeny the slot will be permanently occupied, and it is not possible to buy back the progeny, because the slot will be listed as being empty. Apparently the brothel can only work with a princess. I really wish I had saved before figuring that out the hard way. My dreams of becoming little finger in this run seem to be ruined.