If you're using mouse controls this room can be confusing because there's nowhere to click, you can just walk back down from where you came.
Make sure you check everything in the room. If you're using mouse or touch controls it can sometimes be hard to trigger events, this game is designed for keyboard. You have to click on the exact tile an event is on to trigger it. Sometimes this is at your feet and not in front of you and you have to click on Amber.