Headscratchers / Barbie in the Nutcracker

• When the Nutcracker cracks the ice so the Mouse King's Rock Monster can sink into it, he says that even if he falls to the water, he will still float because he's wood, while the Rock Monster would sink due to being a rock. But what would have happened if the Rock Monster firmly grabbed the Nutcracker with his fist before drowning, dragging him to the depths of the frozen lake?