The Beka Cooper Trilogy: Mastiff
By Tamora Pierce [LibraryThing – Goodreads]
Beka Cooper has just buried her fiancé when she’s called in on a Hunt that threatens the royal family – and the safety of Tortall itself. Along with her partner Tunstall and her loyal scent hound Achoo, Beka must travel far outside of her comfort zone and untangle a conspiracy involving some of the most wealthy and powerful people in the kingdom – while she’s forced to question exactly who she can trust.