"Bloo hoo hoo, I'm an archmage that can teleport and disguise myself, but I'm totally a prisoner here in this room that I can escape from at any time, so I just spend my time sulking and throwing my weight around instead of doing anything useful."
Can't say I'm impressed with this guy. I've known people who wrote treatises on ethics, philosophy and/or physics while in prison. They even left him with shelf-loads of books.