Scholastic, 1992. — 155 p. — (Goosebumps).
He's a living knightmare...
Mike loves hanging out in his father's weird little museum on Fear Street. It's full of cool stuff -- a guillotine, a mummy, a bunch of spooky wax figures. Mike's favourite is a suit of armour. At least it was his favourite until he saw a pair of glowing eyes inside the helmet. Until the knight lifted its arm and pointed its sword at Mike's chest. Until the knight challenged Mike to a battle. A battle to the death.