Mayfly is a female MudWing doctor working in Possibility. She appears to be kind, except towards IceWings, whom she seems to have a grudge against, most likely due to the frost breath injuries she received during the War of The SandWing Succession, as noted by Winter. She is first introduced in Possibility when Hailstorm, Winter, Qibli, and Moonwatcher went in search of help for Kinkajou after she had been injured by Chameleon in his NightWing form, Shapeshifter. She was said to be the best doctor in all of Possibility by a SandWing named Meerkat, but it is unknown how many other doctors there are, or if there are any other doctors at all, apart from Typhoon's father.
Mayfly is described to have mud-brown scales and a wide, flat head. Her back leg and the back half of her tail are covered with, as described by Winter, "unmistakable" frostbreath scars. Her back leg also has two missing claws.
She was seen diagnosing Kinkajou's injury in Possibility. Mayfly was referred to be "the best doctor in Possibility", according to Meerkat. When the dragonets arrived at the clinic, Winter was surprised to see that she was a MudWing. She was also very skeptical on the true reason Kinkajou was there, and was fairly certain that the cause of her injuries was something more realistic, such as being tread over by hippos, and not the result of being attacked by a dragon with super-strength. She continued to pursue the course, but after Moon kept insisting its actual cause, she subsided, grumbling about how there was no shame in her other suggestions.
She observed that Kinkajou, with white scales, had originally looked like an IceWing to her, offending Hailstorm. Mayfly harshly told Winter and Hailstorm to stop blocking the light, shoving a foul-smelling jar in their faces for emphasis. Her hostility towards the IceWing brothers was most likely because of her dislike of IceWings in general (since she had fought and been injured by them before, a frostbite injury on her back leg). She has also been shown to have something to do with the mysterious 'Enclave'.
"There's no shame in admitting it. Hippos can happen to anyone." - About her speculations on Kinkajou's injuries.
"Stop blocking the light. Shoo!" - To Hailstorm and Winter.
"Go sit in the garden!" - To Hailstorm and Winter.
- A mayfly is a short-lived, slender insect with delicate, transparent wings and two or three long filaments on the tail. It lives close to water, where the chiefly herbivorous aquatic larvae develop.
- Mayfly is the fifth known dragon in the series to survive frostbreath from an IceWing, along with Queen Battlewinner, Qibli, Clay, and Dune.
- Because of her frostbreath injuries, she thinks poorly of IceWings. This is likely the reason why she didn't want Winter or Hailstorm near her when she was trying to heal Kinkajou.
- She is the first doctor in the series, other than the RainWing healers.