The Black Place of the Soul-Changer was doing business in Rome six centuries before Christ. It will probably be there on the last day of the cosmos. You might call it a pawnshop, but its sign has three gold infinity symbols instead of the usual balls, and its Latin motto, Res Ullus, translates as "anything". This is the Psychoshop, where you can dump any unwanted aspect of your spirit as long as you exchange it for something else - arcane knowledge, a change of luck, or a sixth sense. Just remember: All sales are final. In this genuinely mind-boggling novel, two of the most unfettered talents in speculative fiction envision a commercial establishment that attracts customers from Edgar Allan Poe to a sorcerer intent on fabricating the Beast of Revelations.