ETA: Thanks everyone! I've decided that the violence (kids killing kids) of the books is inappropriate for my niece who has a very nurturing nature.
Any suggestions for a similar series with a strong female lead who also wields a bow & arrow?

My niece has asked for the Nerf Rebelle Bow so I can only assume it's because of The Hunger Games. I wanted to get her a book series with this "toy" gift. So I thought why not the trilogy but the reading level on Amazon is stating Grades 7 and above.

For anyone that has read it do you think the reading level is ok for a 10 year old? She has really started loving reading in the past two years.