Stephanie: Why can't you break in? You broke into the Vault
Skulduggery: That's different
Stephanie: Yes, it had alarms and vampires - this'll be so much easier
Skulduggery: There are times when extreme measures are unnecessary
Stephanie: Extreme measures are very necessary here!

Skulduggery: The fate of the world may depend on whether or not you can bring yourself to visit your relatives
Stephanie: It may depend
Skulduggery: Valkyrie--
Stephanie: Fine I'll go -
Skulduggery: Being a detective isn't all about torture and murder and monster. Sometimes it gets truly unpleasant.

Stephanie: I wouldn't mind a sister either
Tanith: Any chance of that happening?
Stephanie: I can't see what would be in it for my parents. I mean, they have the perfect daughter already - What more could they want?

Cheer up everyone, since we're all going to die horribly anyway, what's there to be worried about? - Skulduggery Pleasant.

You can only anticipate what someone is going to do if you know know exactly what that someone has just done - Skulduggery Pleasant.

Serpine: Well, Skulduggery? Where is that tired old defiance - the taunting, the goading? Where are the endless heroic clinches? Aren't you going to look me in the eye and tell me to do my worst?
Skulduggery: Actually, I was going to ask that you go easy on me. I'm feeling kind of tender today
Serpine: This is your one chance. Tell me where the key is
Skulduggery:OK
Serpine: Really?
Skulduggery: No, only joking. Do your worst.