A green glow quickly suppresses the multicoloured lightning crackling over his body and cancelling out the red glow from the pool of blood. His skin began flaking away from the power he was channelling, his stolen regeneration working overtime to stop him from having his body morph into a demon.
He drops into the pool of blood and grits his teeth hard enough to draw blood as he slowly makes his way out of it. The frozen parts of the pool had already melted due to the sheer amount of magic being drawn from it, but that only made it easier to escape.
He crawls out of the pool, not forgetting to maintain his blood snakes to keep the Necromancer from recovering control of his magic.
"Have you given up, mortal? Have you chosen to end this quickly!?" the Lich growls, readying his staff for physical combat since he was now completely unable to draw upon his magic without drastic consequences. Both from potentially empowering the child further, or even causing his skeletal body to disintegrate should the child decide to overload him with a sharp powerful burst.
He knew that the only way to solve this was by physically ending his foe, while he wasn't well versed in melee combat, his skeletal body was still strong enough to crush any regular mortal.
Harry sucks in breaths as he slowly approaches the Lich, closing his eyes and grimacing occasionally as the voices in his head screamed out or retribution in a variety of languages he somehow was able to understand. He shakes his head though, keeping his steps, if not steady, constant, to reach his opponent.
"Refusing to speak? Good. Now allow me to finish this quickly!"
Harry scowls as blood continues to drip from his eyes, nose, and mouth. "Hah... You... Really like... The sound of your own voice... Don't you... Hah..." he heaves, stumbling slightly as he picks up a stupidly cold, yet firm shard of ice from the ground that somewhat resembled the blades he was used to wielding.
"Of course. Who else is worthy to speak in my presence?... I am the rightful ruler of this world! You will be but a pebble in my path for conquest. But, that is still impressive but an insect such as you... Now, die!" the Necromancer shouts, stepping forwards and swinging his staff at Harry.
Harry stumbles backwards, barely avoiding the first swipe, blocking the next with his shard of ice, only for the staff to shatter away the top half of his weapon.
*Thud!*
The staff hits on the third strike, the Lich's unpolished movements overpowering Harry as his physical and mental exhaustion overwhelm him.
He forces himself to stay conscious however, getting to his feet despite the shattered ribs that were already knitting themselves together.
"Hmph! Your healing makes even that of trolls seem paltry... Let us see if you can survive having your head crushed!" he shouts, charging in for another attack... Only for Harry to leap forward, stabbing the shortened shard of ice into the Lich's forearm, between his radius and ulna bones.
*Clatter!*
Harry twists the shard as hard as possible, forcefully bending the Lich's arm and throwing the staff out of his hand. But Harry wasn't finished yet, knowing full well that destroying the Lich's body would do little to nothing.
Instead, he lets go of the shard and throws himself at the Necromancer, wrapping his arms around the black robes that hid the skeleton's ribs.
"Hah!? Is this your plan!? Hugging me to death!? Hahahahaha! Foolish morta-..." the Lich pauses, his skeletal hand unable to rend the young boy with his horrifically sharp nails for some reason. "W-WHAT IS THIS!? WHAT ARE YOU DOING!?"
Harry chuckles with his face buried into the robed skeleton's chest, "I... Hah... Have no idea..."
With that, he pulls as much demonic mana as possible, wrapping it around both himself and the Lich, covering them in a sickly green sphere that writhes as if it were filled with a hundred million maggots.
Harry had no idea what he was doing, but he knew he had to do 'SOMETHING' to finish this while retaining his sanity. He NEEDED to return home, with Nanthisk, with Kali!
His demonic magic reaches out towards the Lich and feels something odd... He could feel something within the Lich that inhabited its skeletal body. Gritting his teeth, he tries to pull at it, but achieves little when doing so, his magic simply flowing through it ineffectually.
The Lich does shiver in response however, feeling such a great sense of dismay that he almost loses his composure for the first time since he was still mortal. The Lich struggles to make his body rear back, he then bites down on Harry's shoulder, his teeth tearing into the young boy's flesh with relative ease, trying to force him to stay away.
Harry resists it, continuing to try and do something, anything to the Lich... Then, he notices something that surprises him so much that he almost gives control to the voices in his head. With every pass of his demonic magic, the thing within the Lich began to feel infinitesimally more similar to Harry's magic, albeit, tainted by the attribute of the demon god, Salinarinth.
"AAAAAAAAAAAAHHHHHHHHHHHHHHHHHHRRRRGGGHHHH!! RELEEEASE ME! RELEASE ME NOW! RELEEEEEEEEEEEAAAASSSSEEEEE!" the Lich shrieks in horror, his skills with magic and Necromancy allowing him to quickly identify just what Harry was doing.
"F-FUCK YOU!" Harry growls, plunging more and more demonic mana into the skeleton, causing its bones to start growing grey scales, similar to what'd happened to Harry when he last channelled this kind of magic into himself. It was an odd sight, but he didn't allow it to slow his pace, instead, quickening it to try and end this as soon as possible.
"GRRR-I WILL NOT LET YOU! RELEASE ME, OR DAMN US BOTH!" the Lich roars, ignoring the consequences and pulling on his magic, along with the magic holding up his Palace. Instantly, parts of it begin melting around them, the walls sliding onto the floor that fast-paced glaciers.
Harry doesn't take notice however, reaching out to the thing within the Lich with his magic and finding himself able to touch it. The demonic conversion had changed whatever it was enough so that Harry could affect it... Which he begins doing with brutality most would think a child incapable of.
He tears at it, chipping pieces of it off, all while ignoring the strange and painful sensation of having it flake off and attach to Harry after separating from the undead, the strange phenomenon making it act as if it was magnetised.
He wasn't given the chance to think about the consequences of his action as his survival simply depended on coming out the victor... If the Lich couldn't die through conventional means, then corrupting it with demonic magic and tearing the Lich apart would have to suffice.
The remnants of the Lich's victims helped Harry with this task, dealing vicious attacks to the Lich, each individual not doing much damage, but all together acting like a blender, mashing the thing up and sending the obliterated pieces cascading into Harry's being.
And, with both him and the Lich giving one last scream, everything goes black. His last thought was the sense of victory as the last shreds of the Lich were torn apart.