Dean shrugged. "A book somewhere a while ago. I was interested in drawing so it stuck in my head, never really got to test it properly until recently. I think it's sort of a variation of sending light sparks. It's not really complicated, just a bit difficult to control."
He glanced at Neville, he could sense that he was drifting around the topic neither of them really wanted to talk about but all the evasion was a little disconcerting. Not like Seamus' cheerful skipping over things, or Luna's gentle quietness of shared experience. "You can talk about it you know. I mean I don't want to, but since it's pretty much the only thing on my mind right now..." he trailed off and shrugged, shuddering as several images he'd been trying to disperse flashed through his head.