Feather

Feather (full name Pierakor az Vinrenn D'rav) is a Boros angel, first introduced as Agrus Kos' partner in the Ravnica novel, during the storyline she proves to be a very good partner, but for undisclosed reasons her wings are bound and her service with the Wojeks is considered a punishment. At the end of the book, Kos frees her wings and she flies looking for the Parhelion.

She is seen again at the end of the Guildpact novel, when she emerges just in time to see Kos's death. Her whereabouts during all those years are explained in the Dissension novel, where it is revealed that she is the last surviving of the Boros angels (the rest were killed by Szadek's ghost army). After the events of Dissension, she is named as the Boros Guildmaster.

Even before becoming the Guildmaster, she possessed a small personal fortune due to Pivlic's excellent management of her salary as a wojek (she never spend it, since she doesn't have expenses).

The name Pierakor was inspired by Slovak word "pierko", meaning "feather".