SIGGGGGGGGGGGGH. And also GAAAG. I'm not going to go into the whole boy books/girl books/let's please stop assigning genders to books because HOLY COW and also YEESH:
But, as I'm sure you know, it's not all that unusual to find books marketed like that NOW, let alone in the early '90s, so no, that's not the weird aspect of this find.
Here's the back cover:
AND NOW, THE FRONT COVER (AND MORE IMPORTANTLY, THE AUTHOR REVEAL):
I wonder if this is where his horror career began. I mean, this premise kind of already has him halfway there, right? Just turn Ernie into a soul-sucking demon or make those twins into evil replicants or make the couch carnivorous, and BAM: instant Goosebumps title.
Anyway, I'm fascinated. So I'll take it home and let you know how it goes.