Primitive

Thirteen-year-old Ivy Salvo thinks living in the South American country of Bolivia is exciting enough. She spends her time fighting off wild street dogs and sitting in school counseling sessions for using her karate skills on the annoying boys at school. But when she suddenly finds herself in another world with her brother and sister Ash and Rue, Ivy finds out what danger really is. Between dinosaurs that are supposed to be extinct and creepy aliens who might show up at any minute, Ivy finds herself in a version of Bolivia that is beyond her wildest dreams. At least she finds a friend in Tarben, a boy some call a prim, a primitive human. Time seems to be running out before the powerful aliens return as the prophecy foretold and destroy all the prims, including Tarben and his family. With her knowledge from another world, can Ivy save this one, before it's too late?