Fleetfoot is Aelin Galathynius' dog, gifted to her by Dorian Havilliard.
Fleetfoot was given as a Yulemas gift from prince Dorian to Celaena. Princess Nehemia Ytger often looked after her.
Fleetfoot jumps through a portal to another world when Celaena opens the portal to try and speak with Nehemia.
When Celaena is in Wendlyn, Dorian looks after her. When Dorian reveals his magic to the King of Adarlan, Chaol escapes, taking Fleetfoot with him.
Celaena, now Aelin, and Fleetfoot are reunited when Rowan is taken to a country home in Oakwald Forest to be patched up by a midwife.
Fleetfoot is left in Terrasen with Evangeline and Murtaugh Allsbrook.
Fleetfoot is quite cautious of strangers and does not like to be touched or stroked by anyone other than Celaena/Aelin. Fleetfoot is also good friends with Evangeline.
Fleetfoot is a big dog, with golden fur and bright eyes.