In principle, it should have been almost impossible for a living being to fuse with Ian's bloodline.
But Lady Death, one of the principles of the [secondary flagship] level that formed a pillar of DC, had acted. So something that absolutely should never have happened in principle naturally gained the possibility of happening.
Batman had indeed successfully fused with Ian's bloodline, and because Ian's blood existed on far too high a level, he was affected and overwritten on both the level of his soul and his DNA.
"No, is this some extra revenge God added on for me, or some kind of reward from an old pervert?" Ian stood at the edge of his dimension, which was undergoing violent reconstruction. His will, which had originally been focused on "stitching" his own existence into the deeper rules of the DC Universe, had now directly been hit with the joy of becoming a father.
Who said descendants had to be born?
That was humanity's backward way of carrying on the family line.
This situation was rather like a vampire creating descendants. A force of "bloodline" power that came from the same source as his own essence, yet had been tainted with Gotham's darkness and mortal resilience, had been brutally activated in some corner of the universe and completed an almost impossible fusion.
Ian sensed it at once. After all, that feeling was incredibly clear, incredibly—intimate, yet carried an absurdly misplaced sense of wrongness.
He was all too familiar with that bloodline imprint—it was the information contained within his own blood, undiluted, primitive, and wild. And the soul wavelength fused with it—heavy, painful, scarred all over, yet containing an iron will. Ian could even clearly see the other person in his mind.
Bruce Wayne.
Batman.
Ian could even "feel" the near-destructive pain the