Bradley doesn't like school.  It's boring.  And his teacher, Mrs. Gross is crabby.  And something is terribly wrong.  It all starts when Mrs. Gross introduces a new type of math in which 6x9=54, but upside-down, 9x6=54.  Then she tell the students they don’t have to use any silent letters in their spelling lessons.  "Friend” is “frend” and “have” becomes “hav”. Bradley is dumbfounded and vows to get to the bottom of it.  He finds a book called the Truth About Teachers that tells about Apple Island, where all teachers come from.  The good teachers built an ark and came to America to set up school.  The crabby ones followed them with a sinister plan. When Mrs. Gross kidnaps the classmates and whisks them off to Apple Island, it’s up to Bradley to navigate the island’s pitfalls to save his friends and school children everywhere. 
BuyApple Island, the Truth About Teachers Amazon hardback
BuyApple Island, the Truth About Teachers Amazon paperback