"It can. It's a bit like those ink drawings? With the walls on the floor? Do you know what I mean?" Perhaps Escher is known throughout the multiverse? Perhaps not. Better he reference that than 'Labyrinth'. (Although, come to think of it, if anything would be a universal constant, it would be Bowie in tight pants.)

"In any case, I'm Harry, formerly from Britain. What sort of things do you want to see? There's all the usual places - library, kitchens, halls, courtyards, and the like."