Guardians of the Galaxy & X-Men – The Black Vortex (TPB) (2015)

The Black Vortex, an ancient artifact of immeasurable power, is now in Mr. Knife’s hands! With billions of lives at stake, Star-Lord must steal it back – with the help of both the Guardians and the X-Men! But as a schism forms between the heroes, Knife’s Slaughter Squad closes in! Beast and Kitty must decipher the Vortex Book as Ronan, Nova and the Brood get involved, and Spartax falls!