Hero's Song: The First Song of Eirren, Paperback/Edith Pattou

Collun has always been happiest working in his garden. But his peaceful life is shattered when his sister, Nessa, mysteriously disappears. He sets off to find her and soon realizes that he and his traveling companions, including the feisty young archer Breo-Saight, have become involved in something much larger and more sinister than he had imagined.