SwiftWind

SwiftWind is a cowardly black wolf with green eyes and a brown muzzle, chest, and underbelly, as well as four brown paws.

SPOILERS BELOW

In the third story, SwiftWind races to MoonHowl, yelling that there's been a murder. He is sent with Storm and Stone to investigate his sister's death, and they return with no luck.

In the fifth story, Frost gets SwiftWind to join their side, and he only joins to fight back and get revenge for what happened to his sister.

In the sixth story, Stone kills all of the traitors that helped Storm and Frost, and SwiftWind acts very weak as it's his turn to get killed. That night, he makes his escape and returns to Storm, and Storm tells him that they need a disguised spy that could maybe even kill Stone. SwiftWind is sent back that night, covered in ashes, but Stone still knows who he is and claims that he'll kill SwiftWind and Snow will get Storm and Frost at the same time. Frost later sees something in the water, and they realize it's SwiftWind, dead and still bleeding.

SPOILERS ENDED