Puck is a rather complex guy. I enjoy writing him quite a bit and the question of where his loyalties ultimately lie, and why he does some of the things he does, is always up in the air. He's worked for and against Deus, for and against Pax, he and FastJack have some kind of a deal, he's worked with Harlequin, or his rogue ally spirit, in Denver, and then there's what he does in 10 AIs which y'all still haven't seen (one day, it'll see print!) ... whatever he's doing, he's someone to keep an eye on, but it's hard as he's quite good at vanishing for months, or even years, at a time.
And we haven't even talked about his time as a captive...