Complex sentence: The Squoger is an enemy Jess and Leslie use to combat Scott Hoager, a bully from the Lark Creek Elementary school.Only when Jess stands up to him in the end the Squoger vanishes.
Split into simpler sentences: The Squoger is an enemy Jesse and Leslie use to combat Scott Hoager, a bully from the Lark Creek Elementary school. Once Jesse stands up to him in the end, the Squoger vanishes.