If you hadn't already realised, spoilers for tdotl.
Valkyrie turned away as Skulduggery neared the accelerator, she didn't want to see him die. She couldn't.
"Wha-" Ravel's voice sounded, he was saying what as Skulduggery was about to sacrifice himself.
"That, uh, wasn't exactly willingly given." The engineer said.
"It was, just not my soul. I willingly gave Erskine's" Skulduggery's velvety voice filled the room, and Valkyrie turned around and looked at him.
The engineer shrugged, "Fair enough. I'll shut down the Accelerator."
"Thank you," Skulduggery said and walked towards Valkyrie, "You didn't really think I'd sacrifice myself did you?"
"Yes I bloody well did!" Valkyrie said, she'd stopped crying by now and she was angry.
"A world without me would scarcely be wor-" He was cut off by Valkyrie's fist hitting him on the jaw.
"I hate you."
"worth living in." Skulduggery finished.
Valkyrie glared at him, "Did you just finish your sentence?"
Skulduggery paused, "Yes. Though I don't suppose I should have?"
"No, you shouldn't." Valkyrie said and walked out of the room.
"That was quite funny, though." Skulduggery said once he was beside her, admit it."
"No, it wasn't. It was like when Sherlock made John believe the bomb was going to explode the train and them, y'know in series 3."
Skulduggery paused as if he was frowning, "But you laughed at that."
Valkyrie glared at him, "Shut up."
"I can't believe you believed me."
"Shut up."
"You were crying and everything."
"Shut. Up."
"It was funny."
Valkyrie stopped to glare at him and Skulduggery looked at her before chuckling to himself and walking off.
Valkyrie waiting before joining him, there was one thing he hadn't mentioned.
"I love you."