He who fights monsters should see to it that he himself does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you. – Friedrich Nietzsche

A red sun rises. Blood has been spilled this night. – The Lord of the Rings: The Two Towers

As you and I listen to Uncle Monty tell the three Baudelaire orphans that no harm will ever come to them in the Reptile Room, we should be experiencing the strange feeling that accompanies the arrival of dramatic irony…. For no matter how safe and happy the three children felt, no matter how comforting Uncle Monty’s words were, you and I know that soon Uncle Monty will be dead and the Baudelaires will be miserable once again. – Lemony Snicket, A Series of Unfortunate Events

“The first man had three wishes.”
“Yes,” was the reply. “I don’t know what the first two were, but the third was for death. That’s how I got the paw.” – The Monkey’s Paw, WW Jacobs

Professor Snape: Can anyone tell me what a portkey is? Yes, Miss Granger?
Hermione: A portkey is an enchanted object that when touched will transfer the one or ones who touched it to anywhere on the globe decided upon by the enchanter.
Professor Snape: Very good. Now, can anyone tell me what foreshadowing is? Yes, Miss Granger?
Hermione: Foreshadowing is a dramatic device in which an important plot point is mentioned early in the story to return later in a more significant way. – A Very Potter Musical