User blog comment:Djbluebird22/ The Goosebumps timeline/@comment-28171460-20180408160536

This theory only works some of the time. (Spoiler warning) In the story "Click", the protagonist turns off the universe. That doesn't really fit in with all the other books.

I think Return to HorrorLand tried to start a continuity by putting Monster Blood, Bad Hare Day, and One Day at HorrorLand in the same universe. So some of the books take place in the same universe.