Teen Among Us Impostor Challenge is for Teens 15 and up. You do not have to read every book to participate. Below you will find details about the program. Descriptions of the books. Don't miss out on participating in the emergency meetings. The first emergency meeting is linked below, if you can't participate online there are voting bookmarks available at the library. You can pick up or reserve copies of the books at the library. If you have any questions, please call the library at 405-222-6075.