How I Met My Monster

 How I Met My Monster is the third book in the Goosebumps Most Wanted book series. It is preceded by Son of Slappy and followed by Frankenstein's Dog.

The cover shows a monster wearing a T-shirt that says, "I Love Wolves".

Official Summary
Kids, listen up. I want you to gather around while I tell you a story you may have never heard before. I’m sure you’ve been curious about this for your whole lives. Well, here it is. This is how I met my monster. I, Noah Bienstock, was a shy, lonely 6th-grader. Then I met Monroe Sternom, the new kid in school. Monroe was assigned the seat next to me in school, and we instantly hit it off. But there were some strange things about my new friend. Sometimes when I looked at Monroe, he appeared to be someTHING else. If I only knew the trouble he would get me into.

Trivia

 * The title and summary are a parody of the TV series, How I Met Your Mother.