The upcoming Square Enix game Marvel's Avengers gets a book prequel.

The book’s called Marvel’s Avengers: The Extinction Key. Titan Books releases the book in collaboration with Marvel Entertainment, Square Enix, Crystal Dynamics and Eidos Montreal.

The book is written by Greg Keyes. He will further develop the world for A-Day. A-Day is a catastrophic event that starts the game. The Avengers also fight in the book against an age-old organization called Zodiac. By the way, Keyes will write more books based on the game.

The next book to be released is called Marvel’s Avengers: The Art of the Game, which will be released on September 1. That is a book full of art from the game.

Marvel’s Avengers: The Extinction Key should be released on March 31, 2020.┬áThe game itself will be released on May 19 for PC, PlayStation 4, Xbox One and Google Stadia.