Theo looked back at her when she spoke and smiled a bit, hesitantly, hardly daring to believe she wasn't going to call him out on being weird and liking weird things. "You think so?" he said, watching the colours shift some more. "I like it. It's a three-dimensional puzzle, sort of. I have some real 3D puzzles but nowhere to put them, last time some third years knocked it down before I finished in the commons..."
Third years sucked, he reflected. Well, they'd be in fourth now...