A Possible Ending To Skulduggery Pleasant

 I was thinking a while ago and decided to write up a possible ending to the Skulduggery Pleasant series. Enjoy and comment!
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 Darquesse suddenly retreated leaving Valkyrie standing there, staring at the wreckage her body had created. Tears rolled down her face and she cried silently. From behind, Skulduggery approached and she turned to face him. His suit was torn and battered, his hat was missing and half his skull had been blown to bits, crumpled away. He held his revolver directed at her chest.

"Darquesse," he gasped and Valkyrie shook her head. "I can't let you continue this."
"No..." Valkyrie gasped, fear and sadness gripping her. "...No, Skulduggery, it's me. I'm back." but Skulduggery shook his head, gun not wavering from her chest.
"I'm sorry, Darquesse, but that's not going to work. Not again." he said.
Valkyrie did not know what he was talking about having not remembering what Darquesse had done while she was in charge, but she could assume that she had attempted to trick Skulduggery.
"Skulduggery," she tried, tears rolling down her face. "Please. It's really me."
Skulduggery sighed and she could see that he was hurting. Not hurting in physical pain, not because of all the gashes in his suit that would have caused scars had he any flesh, not because his skull was half blown apart. He was hurting because of what he was going to do, and knew he had to do it.
"Please..." she cried. "Skulduggery."
"Darquesse," Skulduggery cut across her. "I'm not going to ask why you haven't killed me yet. I can only assume that Valkyrie is preventing you from the inside, somehow. Could you tell her, from me, that I'm sorry?"
"No!" she gasped, tears now streaming down her face. "Skulduggery, I'm Valkyrie, I'm back."
"How I wish that was true..." he sighed. "Goodbye, Darquesse." he said and his voice cracked. 

She saw his gloved finger pull the trigger and heard the bullet shot ring out. But then Valkyrie was gone and Darquesse gripped at her soul again.
She blurred, the bullet missing her completely. An elbow smashed into Skulduggery's spine and he staggered forwards, gun falling to the ground.
"She wasn't lying." Darquesse smiled broadly. "Valkyrie was back there, for a while. And you were going to shoot her."
Skulduggery spun and snapped his palm at the air but all that happened was her hair was swept away from her face like a simple breeze and Darquesse laughed. He snapped his fingers and hurled a flaming ball of fire at Darquesse but it spread across her body and evaporated on impact.
She laughed and lashed out. Her kick hit Skulduggery's leg and it gave in, cracked and he fell to the ground yelling in pain. He snatched up his Revolver and quickly leaped to his feet bringing a fist flying up for her chin but Darquesse grabbed it, squeezed and Skulduggery's fist shattered. He hopped back screaming in pain. She snapped her palm and Skulduggery soared backwards through the air and rolled four times acccompanied with loud crack sounds before halting painfully on the dirt ground.

Slowly he picked himself up and faced Darquesse; this was it. She knew it was. Skulduggery raised his gun slowly directed at Darquesse's heart and she raised a hand feeling her Necromancy power surging through her.
"You killed Ghastly!" Skulduggery panted. "You killed Tanith even with the Remnant inside of her, you killed China, you killed Fletcher...Daruqesse, you killed Valkyrie's parents and her sister!"
"All for good reason." she grinned darkly.
"I can't let you live." he gasped and he knew he was crying. And then she grinned. 

A shard of darkness shot from her open palm as a bullet shot from Skulduggery's gun. The shard of darkness sliced through Skulduggery's rib, through his spinal cord and shattered into nothingness behind him. The bullet flew towards Darquesse and she scowled, retreated quickly and suddenly forced Valkyrie forwards again. And then the bullet passed through her heart and shock and pain surged throughout her body.

Valkyrie fell forwards, blood leaking from her chest and caught sight of Skulduggery's bones scattering on the ground, his conscious leaving him and finally abandoning his very long life, now resting in what she very much hoped was peace. She managed a shaky laugh as Valkyrie cast her memories back to many years ago, to before Darquesse had emerged, to when Gordon had been murdered by Serpine....And as she felt the last moments of her life slowly ebb away form her, Valkyrie wondered where she would be now had she not spent that night in Gordon's house all those years ago...