How do you beat the white witch part of Narnia Prince Caspian for Wii?

I am not exactly sure of the controls for the wii, because I own the game for the Xbox 360, but I'm pretty sure the premise will be the same. You will get attacked by a Werewolf and a dwarf one at a time. Once you beat one of them, the wolf will howl, bringing down rocks, which you should then proceed to pick up and throw at the witch casting the spell. After hitting her 3 times, you will see a short cutscene, which will be followed by an attack from both the wolf and the dwarf. Beat them both, and the wolf will howl again. Do this another couple of times, and the witch will be defeated, and if you're playing on the 360 or the PS3 (which obviously you aren't), you will earn either 10G or a Bronze Trophy. Don't forget to open the treasure chest as well, otherwise you will have to replay the mission.