Reward: Silver Key + random item.
If you talk to the Bowerstone South school teacher, you'll know that the school lacks educational materials and would gladly appreciate if you could spare some books. Here you have an opportunity to watch some funny cut-scenes as the teacher reads some books to the kids. If you donate 25 books, you'll get a Silver Key. You can also get a random item (piece of clothing) from the kids after donating about 10 books.