Masters of the Universe / Teenage Mutant Ninja Turtles: Turtles of Grayskull #4

THE MASTERMIND IS REVEALED! In the wild conclusion to this wicked series, we discover who has been tying the threads of the He-Man and Teenage Mutant Ninja Turtles universes together. He-Man and the Teenage Mutant Ninja Turtles find themselves facing-off against unthinkable mutations and chaos — but this time there's no reboots, no safety net, and no rules! Can our teenaged heroes prevail?

Characters: April O'Neil, Donatello, He-Man, Krang (TMNT), Leonardo, Michelangelo, Ninjor, Raphael, Renet, Splinter