Qubine will definitely get involved, as one of the deputies, and being an Ice dragon gives him quite the resistance against ice. He'll be glad to take out as many of the trolls, polar bears, etc., since fighting beasts is what he's accustomed to. He may not be able to sneak into the castle, but lemme know if you want his help dealing with the snow goliath.

And when it's found out that Winter is behind all this, he'll be like, "She would pull a stunt like this, wouldn't she?"

As if he needed more reasons to despise her...