Not just illusion magic, [ He said smugly. This, after all, was a spell of his own design - and one he would probably be chased down for if many people knew. Which was why he was immediately bragging about it to a girl he’d met twice. ] I can see almost all sources of magic, this way. Wards, protection spells, trap spells. It has to be super advanced to be able to go unseen with this.

[ And explained how he managed to get by so many of them. ]

Not quite molecular. It’s still the same material - it won’t change cotton to silk. But weave, colour, that sort of thing is easy enough.

[ He stood up at her suggestion, stretching like a cat. ]

Sure, sounds good to me. Someplace you got in mind?