"That's right..."

So that's why the kid seemed attuned to something dark, he had the ability of umbrakinesis. That was a rare ability on its own, though at one point Abaddon had met a heroine who actually had umbra and photokinesis. Unfortunately, she was dead, killed for fighting in defense of some crazed black magic user Abaddon that Abaddon had relentlessly tortured and killed with his claws and own series of magic. Back to the topic at hand though...

"Shadowy essence abounds from you..."

Abaddon thought back to some murder scenes he had been to on his own. A similar trace of this shadow essence was constantly found there, and though the murders were grisly, most of them were criminals. Key word being most there though...

"You'd do best to put those down," Abaddon growled as one tendril from his back lashed out and caught one of the blades.
"You may be good at hiding, but you leave behind quite the trail. You should be thankful I don't make you my next meal..."