"Oh, yes, I agree." Worth checking out, surely. From safety, preferably. If it turned out to be someone that could be reasoned with, they could come out of hiding, but if it didn't, standing out in the open only made them targets.

The Doctor followed the direction of Malcolm's nod, giving one of his own in return. It was the most they could hope for, really, so he started picking his way towards the spires, ushering for anyone else nearby to follow suit.