Once Upon A Legend - Ben Miller

In VGUC

Marcus has just started at a new and very unusual school, Merlin’s. Determined to get expelled, Marcus does everything he can think of to get into big trouble. But when a prank involving an ancient relic and some old wizard robes accidentally wakes a sleeping giant one night, things take a turn for the magical.

Marcus has unwittingly triggered a chain of events and soon the race is on to save the school and discover his own bravery!