Guardians of the Galaxy & X-Men: The Black Vortex Alpha #1
The Black Vortex starts here! The Black Vortex, an ancient artifact imbued with immeasurable power, is now in the hands of Mr. Knife! With billions of lives potentially at stake, Peter Quill, the Legendary Star-Lord, is going to have to dust off his thieving gloves. But with Knife's Slaughter Squad protecting him, Peter's probably going to need some help.