Prince Cardan will be your last born child,' the Royal Astrologer said. 'He will be the destruction of the crown and the ruination of the throne.'”
-- Baphen (Prologue)

Importance: Baphen is talking to High King Eldred, issuing his prophecy for Cardan's life shortly after his birth. The prophecy is fulfilled because Cardan's confrontation with Madoc ends with Madoc breaking the throne in half. Cardan then breaks the crown himself.

This world already has enough monsters, enough people who want to take advantage of me or hurt me or take away my rights. I don't need to know there's a whole other world full of monsters.”
-- Heather (chapter 3)

Importance: Heather is explaining to Jude why she is struggling with the realization that faeries and all that goes with them are real. Heather also reveals that she is afraid of Oak now that she knows the truth about him.

But for all that, she's still my...
-- Jude (chapter 5)