Maybe I'm tripping, but:
I don't think Bergow (who isn't exactly young anymore) picked the lock on his door, climbed down from the tower using a rope made of sheets, swam across the moat, and escaped over the palisade.
That fits Henry as a jack-of-all-trades, but not Bergow, who has made exploiting and using people his modus operandi.
Moreover, this theory would conflict with the lock-picking mechanics: a broken lock pick simply means NO successful lock-picking.
Maybe he tried lockpicking and failed, and the broken lockpick is therefore legitimate. But I don’t think he used it to get out of the room, and I simply don’t believe that POS was capable of the other alleged escape sequen
