I doubt the Dagger secret will be revealed in this ep, because Bobby said the crap hits the fan for Rumple around ep 9 and 10. He’ll probably bluff his way out of this new situation, make like he really doesn’t know where The Snow Queen is hiding out, make Belle believe he’s telling the truth, just add some more lies onto the pile.
Why does Belle want to find where the Snow Queen is…???
Maybe she remembers having run into her in Arendelle?