In Utero proves that abandoned shopping malls are creepy in any country, even Australia. For reasons unknown, an unused mall is the location for drop off childcare during the school holidays. Hailey is twelve and feels too old for these settings, but is dropped off hastily by her mom anyway. And then the horrors start. 

That's really all you should know. This book is equal parts horrifying and satirically hilarious. Oh, and there's also an endearing friendship and a battle between good and bad (not quite evil?). Very fun, highly recommend.