Sylve is an Elderling and Dragon Keeper for the dragon Mercor, leader of the dragons and the first to recall Kelsingra. She is twelve years old and had pink scaling on her scalp. She is the youngest of the keepers, and is kind to Thymara and Alise Kincarron and eventually mates with Harrikin.
She helps Thymara look for the silver male dragon, later named Spit, and cries over the loss of the female copper dragon, who later returns. Sylve's bond with Mercor grows continually stronger as they travel, and Sylve becomes an elderling after guidance from Mercor.