About: The Echorium Sequence

The Echorium Sequence is a young adult fantasy trilogy by Katherine Roberts. The trilogy comprises Song Quest (1999), Crystal Mask (2001), and Dark Quetzal (2003), and follows the tales of The Echorium; the singers located on the Isle of Echoes. In the first book, Song Quest, the major characters are singer Rialle, and Kherron, followed by Renn and Shaiala in Crystal Mask. In Dark Quetzal, the major characters are Kyarra and Caell. The trilogy follows each generation carrying on from the previous generation in each book, starting with Rialle and Kherron. The series features creatures such as nāgas, centaurs, and half-creatures.