Bellerophon

Bellerophon arrived to the clan as a very sickly hatchling, having caught something in his voyage from the Viridian Labyrinth. His formative years were thus spent in quarantine, surrounded by other members of the clan (but isolated from other skydancers) as they desperately worked to save him from death. Some of the magical treatments he received (courtesy of Verid and Luminosa) had the added side effect of changing his outward appreance - these markings are not those he was born with.
He has since recovered, but will always remain physically frail, with a weaker immune system than many other dragon his age. Fortunately in the Sunbeam Ruins there are no end of books and inwards amusements to occupy his time, and although his body is weak, his mind is strong.
His scarf was made for him by Zipporah while he was in the worst of his illness, and he keeps it as much out of sentiment as of actual necesity.