As bravely as a match flickering in the night, the Paris L'Ordre sought cheer for mankind. "Visit the Hostel of Three Mallets in the Latin Quarter," it advised. There, in subterranean chambers, the visitor sees medieval instruments of torture. St. Catherine's Wheel is most gruesome. It rests on a base studded with nails. A victim bound to the wheel was raised or lowered in relation to the base; as the instrument turned, his flesh was torn at the desired speed and depth.
"Once you leave the Hostel," concluded L'Ordre, "the nightmare is ended. Outside, the air is fresh, the sky blue. How...