The Classroom That Wasn’t There

North Morrowby School has forty-two floor tiles between the headteacher's office and the Year Six noticeboard. Elsie Vale knows because she has counted them.On Monday morning, there are forty-three.Then a classroom appears where no classroom can possibly fit.Inside Classroom 4B are twenty empty desks, a clock eight minutes fast, and a worksheet already printed with the names of Elsie and her friends Milo, Zara and Benji.Before they can work out why, the room disappears.The four friends decide to investigate. But the deeper they look into North Morrowby School, the clearer it becomes that Classroom 4B may not be the first impossible thing to have happened there.Some clues have perfectly ordinary explanations.Some don't.Funny, fast-moving and just the right amount of creepy, The Classroom That Wasn't There is the first mystery in The Oddside Files, a series for readers who love strange schools, clever clues, friendship and mysteries that refuse to give up all their answers.Four friends. Strange mysteries. One file at a time.