Supernatural (Anime)/Recap/S06 E17 My Heart Will Go On

The Winchesters investigate mysterious deaths that are only connected through the ship the victims' ancestors immigrated to America on -- a liner called the RMS Titanic. Meanwhile, Bobby and his wife Ellen have a talk.

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Tropes
"Dean: Your kind of librarian or my kind of librarian?
 * Alternate Universe: When the boys get into a classic Mustang, we know something is up.
 * Appeal to Obscurity
 * Back From the Dead: Ellen and Jo, to the viewers. In-universe, saving the Titanic somehow meant the Harvelles never actually died and so aren't actually resurrected.
 * Cosmic Retcon
 * For Want of a Nail
 * Greek Mythology: The Fates.
 * Hesitation Equals Dishonesty: Castiel is still getting the hang of this whole "deception" thing.
 * Hot Librarian: After catching a glimpse of Fate, Sam describes her as "like a librarian."

Sam: Well, she was wearing clothes, if that's what you mean."


 * It's a Wonderful Life: Though the alternate timeline is arguably better than the original.
 * Ripple-Effect-Proof Memory
 * Rube Goldberg Device/Rube Goldberg Hates Your Guts
 * Shown Their Work: Using a piece of tile or terra cotta to test the streak color is actually a valid, relatively accurate way of identifying minerals.
 * Take That: Celine Dion, and Titanic
 * Tempting Fate: Invoked.
 * Too Soon: "Yeah, Dean, I'm pretty sure six seconds is too soon."
 * What the Hell, Hero?: Fate to Castiel.
 * You Can't Fight Fate: Pretty literally.
 * You Have Got to Be Kidding Me!