Nicholas St. North and the Battle of the Nightmare King (Guardians of Childhood Chapter Books)

Nicholas St. North, a daredevil swordsman seeking treasure in the fiercely guarded village of Santoff Claussen finds, instead, the great wizard Ombric Shalazar and a battle against the Nightmare King and his evil Fearlings--a battle Nicholas can win onlyif he finds five other Guardians in time.