Find someone to murder is the answer on the tip of his tongue, but also not currently helpful.

"I think you're one of the few that have a viable reason to leave Thorne," Lucifer says, a tad twitchy. Even under guard for his "own protection" or whatever they're spewing, without a genuine lead or a real reason to leave, they're more likely to tighten Lucifer's leash than let him do what he wants. Trapped, trapped, trapped. "Keep communication where I can; work on their damn wards around town." Not the castle.