User blog comment:ThatRetro/New Gooseblog: Who's Your Mummy?/@comment-37967386-20190511031736/@comment-28171460-20190511190547

I don't think Stine will try another HorrorLand-type serial because it kinda' flopped. I think the series showed ambition, but it just didn't work.

From what I can tell, there are very few people who actually kept up with the underlying series from start to finish.

Honestly, having an ongoing story might've even hurt sales. When I was younger, I kinda' avoided HorrorLand because I assumed it could only be read in chronological order. (Which is semi-true. If you don't read them in order, all of the "Enter HorrorLand" stuff is confusing.) The series tried to "encourage" (force) kids to read every book, but it probably had the opposite effect.