Andrew, Duffy, Marie, Aunt Elise, and Andrew's mom are going to a house in the woods one weekend in October. Duffy forgot his suitcase, so they had to turn around to go back and get it.
Everyone helped to clean the house when they got there because it needed fumigating. Next, they went to bed because they were tired. Then, they woke up and looked around the house, and they found a Beware of the Sentinel sign.
The kids went to the woods and it was cold at first. Eventually, it got hot, so they took their coats off. When they got back to the house, Duffy realized he forgot his jacket in the woods.