Go back through the door

You try to squeeze your body back through the opening. As you do the rabbit hops off in the other direction. You'll never know where he's headed.

You manage to just slip you feet through the hole and hear a large crash. The giants head is blocking the hole from a return trip.

Once back in the room you see a small shiny gold lamp partially hidden under a rug that you couldn't see from the direction you originally came.