You are outside now. A hundred walled yards under a night sky, each one gated and numbered where the hotel's numbering left off. Open the gates, search the chests, and get into a stone alcove when the lamps start to go.
Watch the ground. Thorn vines come up through the flagstones and they do not let go. And at gate fifty there is a yard with five keys in it, and something walking between the lockers.
Keyboard and mouse required. Sound on is better.