Everworld
I've read the whole everworld series and I have to say it is awsome. The book came from K.A. Applegate the creator of animorfs(personally I don't like those books at all), the story is about a group of teenagers who somehow get sent to a world where all of the gods of myth have went in refuge. This world was crerated by the gods to their liking so that they didn't have to deal with the rules of the real world. their are all types of gods i control of different teritories(greek aztek[very bloody god], egyption, norse, and so on). What the group have to figure out is how to make it back home without dying while dealing with the truoble of a alchohol adicting guy and a guy who has fallen for a spell by a witch that came with them from the real world. It may sound a little bit stupid but it is one of the best series I've ever read(the series is mad up of an amazing 14 books). The books are small but I think you would all enjoy it
It is rated TEEN for some sexuel related themes, alchohol, and blood/gore (makes it even mre interesting)
You should read it, any local library should have it