What is a short summary of chapter 4 in Hatchet?
The chapter begins with Brian remembering "the secret," the moment where he was out riding bikes with a friend and he saw his mother kissing a man who was not his father. He is in the midst of this memory when he wakes up and realizes he survived the crash. He thinks his way through the crash and then takes stock of his situation, trying to figure out whether anything is broken or not.
He tries to stay warm and even get some rest but the sun soon comes up and he is quickly attacked by swarms of mosquitoes and flies. He is actually in total despair, feeling like he can't possibly deal with these biting, stinging insects when the sunlight reaches him and drives them away.
When he has a moment to look around and see his situation, he sees a bunch of rocks that would have killed him had he been slightly off in his approach to the lake. He considers how tired he is and how quiet it is in the woods compared to the life he was used to.