As a teen novel, the amount is appropriate and would have been engaging for one. I loved the plot as it was magical and fantasy-like. I would say it is a unique story on its own; about wolves with flutes, and interesting magical family members. Although it was both interesting and engaging for me, I wished the story was more elaborated and detailed. There was some unexplained parts in the story (such as travelling during winter part), which I wished to know more about. The story was too brief, it needs more explanation! It would have made the story even better than it is.
Overall, it's worth a read! And I would encourage it to kids also because I know they'll love it :D