D'Hak can be spoken to with Speak with Animals. Should the player choose so, they will find out that both wolves are discontent with Therezzyn's habit to feed to them victims along with their armour.
Nip at a target to deal 1d4 + Strength ModifierPiercing damage and distract it. If your attack hits, the next attack against the target from within 1.5 m / 5 ft will be a Critical Hit.