These Wolf/Dog constructs were originally bred to hunt down Sparks, however some Sparks (including the [ Mongfish] [[Chronology - Volume #|✣ ]] family.) enjoyed the novelty of the idea and started making contributions to the breed for their own ends. They first appear in the story proper when Martellus von Blitzengaard, who seems to have an affinity for such constructs, unleashes several to quell a rebellion against him in The Refuge of Storms. When Agatha escapes the Refuge, von Blitzengaard calls on several roaming packs, including the one overseen by Ishtvan, that patrol the nearby area to stop her. While they fail in this task they later go into battle against Wulfenbach Sentinels with a good [ showing] [[Chronology - Volume #|✣ ]]. Their subsequent fight with Higgs, Bohrlaikha and a G