According to the Official Guide:
"The Traveller’s Acolyte is the place to go for a good night’s rest or a bit of shopping. The Inn costs 50G and the shopkeeper doesn’t sell much. If you’re importing you’ll want to stock up a bit on Potions and Phials and go to the top floor to collect another Potion from the wardrobe as well as return and open the chest there once you’ve found a Key to open locked chests."
I cannot open the locked chest on the top floor. When I click on it nothing happens... it doesn't even tell me that the chest is locked. I have the Miracle Key equipped on Marine and have used it to open other locked chests. Is this a bug?