How I Met My Monster is a novella written by R. L. Stine. It was first published in 2013 and was the third book in the Goosebumps Most Wanted book series.
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Night for Noah Bienstock is a scary time. He keeps having the scariest dream that he's being hunted by a monster and can't escape. Daytime isn't much better for Noah, a shy, lonely 6th grader. But then Noah meets Monroe, the new kid in town. Monroe is assigned the seat next to Noah in school and they instantly hit it off. But there are some strange things about Monroe. Can he trust Monroe with the details of his dream? Noah must do whatever it takes to make sure his nightmares don't come true!