Do not miss the final minute of Sunday’s episode. It’s a game changer that involves a vow Rumple makes in a flashback to Fairy Tale Land. And while some of you believe to have the mystery of Rumplestiltskin’s son all figured out, I shall relate a lesson Bae’s dad is about to learn from a sneaky seer: Just because you know what’s going to happen doesn’t mean you know what’s going to happen. I relayed a couple scooplets in Ask Ausiello, but here are more: Hook proves adept at translating treasure maps but less so at fending off witchy women; David and Mary Margaret have a rather hilarious conversation about their family tree and what Thanksgiving dinner might look like this year; a three-month-old mystery is solved; Cora, sporting a modern-day Maine makeover, has a tender talk with Regina; and a grim fate is surprisingly revealed for a major character. Also: There’s some terrific work by both Robert Carlyle and Jennifer Morrison.