"It's the Monster Book of Monsters." Harry said as he calmly pulled out a shaking book that had fangs and eyes from his bag. "It will tell you all you need to know about wizarding monsters." He set it down on the table in front of a staring Dean and Sam.
Sam tried to open it but-"Ow!"- it just bit him.
"Stroke the spine, trust me." Harry said an amused glint in his eyes.
Dean glared before stroking the spine and carefully opening the book. On each of the pages were detailed pictures and explanations of every monster imaginable. "Wow, thanks-" he looked up to see Harry gone and the door to the diner swinging closed "Harry?"