Falls of the Hinterlands Do you doubt it's yours?

They're gone. 

Praised by her Grandmaster once again, Nyra turned as he did, walking next to him shoulder-to-shoulder still, if not slightly behind. 

Free to interrogate? Now was probably the best time to do so instead of bringing it up later. 
"The past is exactly that. The past." Nyra sighed, 
"However, if you do it again...I'll kill you myself." 

Frankly, a decent wolf most likely would have heard Simmik's accusation and killed him then and there. 
But, Nyra wasn't a decent wolf.