Are you a fan of the Marvel Universe? Then you might read a book written by Dan Abnett, titled "The Thanos Imperative." What's this volume about? We'll try to give you some spoilers, without revealing too much.
There's a cosmic fissure named "The Fault" that caused a portal to a parallel universe where people never die. This place is called Cancerverse and over there, our heroes are actually anti-heroes, or, in other words, evil. They even have slightly differently-spelled names.
Take for instance the evil Lord Mar-vell who is a twisted version of the legendary Captain Marvel. This lord wants to take over our world and our heroes can't really stop that.
Fret not, for Star-Lord has a plan, but you'll have to read the book to learn what the plan is and whether it succeeds or not.