Ivy grows on it, leafless now in winter, covering it with skeletal veining. Inside it there are long hallways with hardwood floors, stained and worn from generations of students in slushy winter boots, but still kept polished. There are staircases, also of wood, which creak when we climb them, and banisters we aren’t supposed to slide down, and iron radiators that make banging noises and are either stone cold or blazing hot.

On the second floor there are corridors leading into other corridors, lined with shelves that contain jars full of dead lizards or pickled ox eyeballs. In one room there are glass cages with snakes in them, snakes bigger than any we’ve ever seen before. One is a tame boa constrictor, and if the man in charge of it is there he gets it out and winds it around his arm, so we can see how it crushes things to death in order to eat them. We’re allowed to stroke it. Its skin is cool and dry. Other cages have rattlesnakes, and the man shows us how he milks the venom out of their fangs. For this he wears a leather glove. The fangs are curved and hollow, the venom dripping from them is yellow.

In the same room is a cement pool filled with thick-looking greenish water in which large turtles sit and blink or clamber ponderously up onto the rocks provided for them, hissing if we get too close. This room is hotter and steamier than the others because the snakes and turtles need it to be; it smells musky. In yet another room is a cage full of gigantic African cockroaches, white-colored and so poisonous that their keeper has to gas them to make them unconscious every time he opens the cage to feed them or get one out.

Down in the cellar there are shelves and shelves of white rats and black mice, special ones that aren’t wild. They eat food pellets from hoppers in their cages and drink from bottles fitted with eyedroppers. They have chewed-newspaper nests full of pink hairless baby mice.