“First sign of madness, talking to your own head.”

“

Great. She shook her head. Not only am I having conversations with myself, but now I'm refusing to talk to me. This has got to be the first sign of madness.”

“For me, the first sign of oncoming madness is that I'm unable to write.”

“Valkyrie dialed Skulduggery's number and he picked up. 'Hey,' she said, 'It's me.'Skulduggery paused. 'No it's not. If it were me, then I'd be talking to myself, and I don't do that any more. I certainly don't RING myself. That's one of the first signs of madness, and if it's not, it should be.'She sighed. 'Are you finished talking nonsense?''I haven't talked nonsense all morning. I miss it.”

“Then it was that there came into my head the first of the mad notions that contributed so much to saving our lives.”

“It is not that I am mad, it is only that my head is different from yours.”