Wilbur and tommy somehow got lost in a forest when taking the wrong path and it was getting dark. They didn't have signal to call for help so they were stuck back tracking. But that didn't help and they got more lost

Tommy heard footsteps soon after Tommy: "shh Wilbur..! I heard footsteps and I think I saw a tail to a animal or something.."

They didn't know that you were a hybrid of a human and a {{animal of your choice}}. you were just walking to your den and saw people