The historic Sonic the Hedgehog and Mega Man crossover event rolls on! "When Worlds Collide" Part Seven of Twelve: The hunt for the Roboticized Masters continues as Sonic and Mega Man face down Shadow Man and Shadow Man? Meanwhile, Drs. Eggman and Wily gloat over the captive Dr. Light. But what is the brilliant, bearded scientist preparing to do? Featuring stunning new cover art from Patrick "SPAZ" Spaziante!