Hold on to your schoolbag! At the maddest school in the universe, Henry McThrottle’s class learns something different every day. How to fly. How to skid on a banana skin. How to conduct an archaeological dig. How to make history. But when Henry discovers that there’s pirate gold buried in the school, the whole place goes TREASURE FEVER MAD! Now can Henry and his buddies race to the booty before everybody else does? A laugh-out-loud gem from the bestselling author of The Day My Bum Went Psycho.