“Detect in the canned goods,” Number 13 explained. “That stuff is concentrated at Mizzentop. Every can has a very small hole bored in the top, and the solution is squirted into the soup or fruit or whatever’s in the can, by a small syringe. This little bit of a hole—it’s just big enough to push the needle through—is closed up again. It’s all done by machinery that’s been installed in the old hotel at Mizzentop.”