Major spoilers for Stranger Things 4 vol. 1 below. Beware!

After three seasons of Stranger Things, you’d think you’ve seen it all—demogorgons, exploding rats, a secret Russian operation under the local mall—but to that the fourth season says, not so fast. Enter Vecna, a new villain from the Upside Down come to wreak havoc on Hawkins in Stranger Things 4. Inspired by famous ‘80s and ‘90s movie villains like Freddie Kruger, Pinhead, and Pennywise, show creators Matt and Ross Duffer have introduced a threat unlike any other Eleven and co. have ever seen.