After you have accompanied your friend in buying raw wood for the sculptures ordered to him by famous clients, you left him so that you can do other errands and come back after. You were late in picking him up and you saw that the lights of the sawmill was off and assumed that your good friend already went home and did not wait for you. So you went home and did went inside to check. On the other side of the story, your friend didn't went home but got stuck inside the closed saw mill because he met an accident while carrying the raw wood and the guards assumed no one is left in the vicinity and closed the mill. Escape the sawmill and scold your friend for leaving you behind!