Lana Parrilla, Jennifer Morrison Photo

From: Photo Flash: First Look - This Week's All New ONCE UPON A TIME

On this week's new episode of ONCE UPON A TIME, titled 'The Miller's Daughter,' Cora's desire to rid herself of Rumplestiltskin in order to take his place as The Dark One takes one step closer to becoming reality as she and Regina try to overpower a dying Mr. Gold, and Mary Margaret is once again tempted by dark magic. Meanwhile, in the fairytale land that was, Rumplestiltskin agrees to offer his services to a younger Cora - for a price - when the king calls her bluff and orders her to actually follow through on her boast of being able to spin straw into gold, on SUNDAY, MARCH 10 (8:00-9:00 p.m., ET) on ABC.