"All right, so we have half a plan. Those who can perform go on early, then Orb distracts everyone with her stunning good looks and magical voice for as long as possible while we rest up. If she's as good as she claims, the first shift change after Orb finishes will put tired, groggy, unalert guards on duty. Then, Orb takes a catnap while we go in. I think we've got several ways other than through the front door to accomplish that. It'd be nice to have a layout of the place ahead of time -- say, if someone could get themselves invited in to see the commander --" Ross glances at Orb again, "-- and also to know how many people are wandering around in there. Barring that, we go in cold, find the dungeon, fight the guards if we have to, rescue the guy, and get out the way we got in. We'll pick up Orb and, with a little luck, we'll put this place to heels by dawn." She thinks for a moment. "Depending on how the rescue goes, we may need Orb to talk us out of here, too.
As for getting in..." She folds her left arm across her chest and with her other hand taps her lips in thought. "Rickol and I should have no trouble hitting the roof. I think we might be able to rig a ladder for the big folks, too. Otherwise, we could launch a surprise attack on the front door from inside, but that might draw too much unwanted attention.
Here's a thought: once most of the soldiers are in their barracks resting up, can anyone think of a way to lock them in? Bars on the door from the outside or something?"