the techno underground snakes

I'm with Mick, and we are traveling along this urban landscape, and there are these giant wormlike snake creatures, which come up out of the ground, a bit techno style,and eat things up, and then travel back underground. They are a bit like trains, and such like transport. They are quite harmless and passive, but massive and scary non-the-less. Now I am traveling with AL, to do this gig. We bump into Alys, and she says we have gone to the wrong place, we need to be in hillsbrough. Oh no! We are going to be late! We jump back into the van, and drive as quick as we can. We are meant to be first up!