Later, Kaine allies himself with the Kingpin of Crime, but is betrayed by him during a confrontation with Daredevil. Daredevil sacrifices his own life to save Kaine. Kaine takes Daredevil's body to a regeneration chamber, where he is also attempting to assist Reilly Tyne (Ben Reilly's son) who is degenerating as a result of his imperfectly clone father's DNA. He attempts to summon the demon Zarathos to aid in saving the two, but, in the end, Zarathos turns on him and attempts to claim the boy's body as his human vessel. The soul of Daredevil fights the demon, and in the end Tyne is transformed into Darkdevil, with the soul of a hero and the powers of a demon.