When Marvel Comics June "Spider-Men" mini series - a crossover between the classic Marvel U and the Ultimate Comics Universe set to celebrate Peter Parker's 50th Anniversary -was announced, the company played off the villain of the piece as mysterious. And now we know why.

USA Today has the scoop that Mysterio - the helmet-headed illusionist that dates back to Stan Lee and Steve Ditko's days on the comic -will be the one to bring Parker and new Ultimate Spidey Miles Morales together for one adventure. "Mysterio is up there with the most dangerous criminals that Spider-Man has come up against," writer Brian Michael Bendis told the paper. "When I was a kid, I found some of his stories to be terrifying. It just got so personal. When he does his thing right, he delves in and gets deep into a psyche that doesn't deserve that kind of punishment.

"He bought a gross of fishbowls at one point and is just sticking to them. Most villains, all you have to do is step out of their eye line and they can't see you. But he can turn his head and can see you from all directions."

The writer (who teams with "Ultimate Comics Spider-Man" artist Sara Pichelli for the story) went on to compare Peter Parker's journey into the young universe where his counterpart died to "A Christmas Carol" saying that, "the real meat of the story is [Peter] meeting Aunt May and Gwen and MJ and discovering this world and what it means to him. You can't walk away from an interaction like that without being changed, and Miles being witness to it all is the best lesson he can learn."

Bendis also compared this crossover to some famous intercompany crossovers of the past including "Batman Vs. The Incredible Hulk" and "The Uncanny X-Men And The New Teen Titans" saying that Mysterio fits the bill for a big bad who ups the stakes. "I wanted something that reminded me of that but not be a ripoff."

For more, check out USA Today, and stay tuned to CBR News for all things "Spider-Men."