Island of Giants

From publisher blurb: A school experiment sends you and a classmate spinning into an alternative reality. To find your way home again, you need to find the Magician. The problem is, you don’t know where this Magician is, and everything here is big, bigger, or the biggest you’ve ever seen. Will you find your way home? Or, will you be lost forever? Oh … and watch out for the saltwater crocodile!