I feel myself take a step forward. My legs know what I should be doing. My body is acting as my conscience. The step becomes a spring and Anna too is lunging forward and for a moment I think she’s on the same mission as me until her hand lands on my shoulder and I feel a yanking on the strap of my bag and in that instant, Anna comes to an abrupt stop, sending the bag flying into the air. It lands a foot or two away and breaks open, its contents scattering. The shock soon gives way to a rising panic about what might have spilled and I’m down on my knees, rooting around in the murk, scraping tissues and lip balm, my travel card and phone, cash and everything else back inside the bag, checking over my shoulder to make sure Anna hasn’t looked too closely at the spilled contents.

As I rise she’s grabbing my wrist and squeezing the spot where my new tattoo sits. I try to shake her off but she’s hissing at me now, her body poised to pull me back again. ‘Don’t be so bloody stupid! You don’t know what you’re getting into.’

‘He’s hurting her! Someone needs to intervene. At least let’s call the police.’

My hand makes contact with my bag, peels open the zip and fumbles around in the mess. And in that moment in my mind a wave crests and rushes to the shore and the foam pulls back exposing a small bright pebble of clarity. What would the police say if they found what I am carrying? What would Anna say?

In my mind an ugly calm descends. My hand withdraws and pulls the zip tight. They say that it’s in moments of crisis that we reveal most about ourselves.

‘My battery’s dead. You’ll have to call from yours.’

I’d like to say I’d forgotten that Anna’s phone was out of juice but I hadn’t. In any case, Anna isn’t listening. Something else has caught her attention. On the far side a phone torch shines, a light at the end of a dark tunnel, and in its beam is Dex, as frozen as a waxwork. Behind him, in the gloom, lurks a shadowy figure that can only be Bo. If anyone is going to put a stop to what is going on in the alley it’ll be Bo.

Won’t it?

‘Please,’ murmurs Anna. ‘Please, boys, no heroics.’