"I don't know who is worse," Benoît complains, ducking. "You, or that monkey."

"Definitely me," I say, locking the door behind him.

The blackened walls of Elysium Heights' stairwell still carry a whiff of the Undertow, like polyester burning in a microwave. The stairway is mummified in yellow police tape and a charm against evidence-tampering, as if the cops are ever going to come back and investigate. A dead zoo in Zoo City is low priority even on a good day. Most of the residents have been forced to use the fire-escape to bypass this floor. But there are faster ways to the ground. I have a talent not just for finding lost things, but shortcuts too.

I duck into number 615, abandoned ever since the fire tore through here, and scramble down through the hole in the floor that drops into 526, which has been gutted by scrap rats who ripped out the floorboards, the pipes, the fittings – anything that could be sold for a hit.

Speaking of which, there is a junkie passed out in the doorway, some dirty furry thing nested against his chest, breathing fast and shallow. My slops crunch on the brittle glitter of a broken lightbulb as I step over him. In my day we smoked crack, or mandrax if you were really trashy. I cross over the walkway that connects to Aurum Place and a functional staircase. Or not so functional. The moment I swing open the double doors to the stairwell and utter darkness, it becomes obvious where the junkie got the bulb.

"Well, isn't this romantic?"

Sloth grunts in response.

"Yeah, you say that now, but remember, I'm taking you with me if I fall," I say, stepping into the darkness.

Sloth drives me like a Zinzi motorbike, his claws clenching, left, right, down, down, down for two storeys to where the bulbs are still intact. It won't be long until they too find a new life as tik pipes, but isn't that the way of the slums? Even the stuff that's nailed down gets repurposed.