Levels in Brogue often have a treasure room protected by a key somewhere else on the same level. There are usually 4 or 5 bits of treasure on altars in the room protected by cages. When you pick up an item from one altar, the rest of the cages close and you cannot pick a different item until you drop the current item back onto the alter where you picked it up. Of course, some of these rooms have multiple items that would help me greatly!
Is there a way to trick the room into opening all the cages or getting multiple items? I tried dropping a different item onto an empty altar but that didn't work.