During their time with the Hunt, Kieran and his lover Mark Blackthorn mounted Windspear together several times.
In August 2012, after Mark had left the Hunt, Kieran lent Windspear to him for a night and took him back after. Some time after, Kieran once again rode Windspear to the Los Angeles Institute and, with Mark, rode to Malcolm's convergence to rescue Mark's brother Octavian. Windspear and Kieran briefly stood guard outside the convergence cave before Mark and Julian Blackthorn came back for them. Julian mounted Windspear and rode him into the cave. The steed later kicked Malcolm Fade to save Kieran. After the battle, Windspear carried Kieran back to the Institute, and then back to the Hunt, though they were captured en route.
Being a faerie steed, Windspear can change his appearance, but unglamoured, he often appears as a white stallion with red eyes.