Book excerpt: 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 favorite is a suit of armor. At least it was his favorite 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. Now he’s a living knightmare...