Description and PersonaLord Goryon and that lord's Master of Horse when they essayed to saddle him.
Taran rode Melynlas from Caer Dallben through the Forest of Idris to Dark Gate; along the trail Prince Ellidyr drove his roan mare Islimach against Melynlas, and the stallion lost his footing, nearly plunging off the cliff along with Taran. From the ledge where they had tumbled, Ellidyr pulled and pushed them both back up; even Taran had to admit he had never seen such a feat of strength.Huntsmen of Annuvin, into the Marshes of Morva from which the stallion and Adaon's bay mare, Lluagor, helped carry the Black Crochan. At last Taran rode him to the camp of King Morgant, where Melynlas was unhappily stabled until freed following the battle, and happily returned to Taran.
Taran rode Melynlas throughout his extensive travels across the width of Prydain, during which Melynlas was seized by Lord Goryon's men, but after bucking that greedy lord and his Master of Horse, the stallion was reclaimed by Taran, who cannily offered the powerful steed as a gift -- an offer pridefully rebuffed by Goryon.
Taran rode his beloved stallion throughout the attempt to recoup Dyrnwyn from Annuvin. The steed's sure footing availed both Melynlas and his master in the treacherous defiles of the Hills of Bran-Galedd.