Deadly Chakram, my daughter loves the Percy Jackson books and still reads them.
My best friend teaches in a boy's high school and they all say the Percy Jackson books are their favorite books they've ever read.
She didn't like the second series as well but still found them enjoyable. Have you read those?
The second series is what we're currently in. Book 4. And I agree that the originals are better. We also have the Trials of Apollo series and the Red Pyramid series standing by for the future.
Battle On, Deadly Chakram
"Being with you is stronger than me alone." ~ Clark Kent
"One little spark of inspiration is at the heart of all creation." ~ Figment the Dragon