The mother of Burnetstorm and Tallheart and mate to Sandstream, Myrtlefrost is a RiverClan warrior who takes her duties as a warrior very seriously. She disliked staying in the nursery since she believed that it was lowering her status as a great RiverClan warrior, and was relieved to finally return to her role as a Clan warrior. Despite such, she maintains a close bond with her kits, but is often seen questioning Tallheart's actions and loyalty.