The Teenage Girls are enemies on Big Nate Island.
The student on the left of the group of girls has short black hair, wears an orange shirt with green short, and carries a brown binder. The girl in the middle has blond hair, a red shirt and purple pants. The teenager on the right has dark skin and her curly hair is pulled into a ponytail. She wears a blue buttoned shirt and orange pants.
The teenage girls are standing directly above the time capsule. However, they will not move until the school bell rings. In order to get them to move, you must attatch the Clapper (found in the school basement) to the school bell and ring it. However, you first must make sure that the pelican is nowhere near the clapper by using the lighthouse light to scare it off. Once the bell rings, the teenage girls will move. You can then use the Peanut Butter Cracker to make Spitsy dig up the Time Capsule. Once you do so, you will receive the island medallion from Mrs. Godfrey.