Books like Piper at the Gate

While i liked the characters in this book awhole lot more, i felt alot of it was too easy? not believable? It was like, the story is great, alot of potential, but the author didn't want to take the time to lead you there. Also,at the beginning of the book, I like Piper...alot. But by the end, he loses something, and well at least we still have the geldings. But I would like to see a third book, i would like to know what happenes to El Arat and her fillies. Piper is still young enough, he could remain the main char. or his son, Rocket.