Harry's Lattice

Imagine if you got home one evening, unlocked your front door, opened it and went into your hall; only it wasn't your hall. Imagine it was completely different to anything you had ever seen before. Not a hall at all, but a dizzying tableau of clouds, sky, ice fields covered in dazzling snow; all seen from the top of a huge mountainous Himalayan peak.  Just inside your front door.Or imagine you wer...