Feeling that both doors would lead you to being eaten by a grue, you run over to the ladder on the side of the house. It is made of small peices of wood lashed between two poles. You grab the ladder and start ascending. You reach the top of the hut and the grues cannot climbthe ladder. You are safe.
But not for long. On the roof of the house is another nature grue who is seemingly unaware of your presence. It is working on it's tan. Any movement will alert it. You stay still. But then you spring to your feet and stand in ready position. The grue is alarmed and eats you.