In short, Colby Dominic exaggerated the issue about Grace just to send Howell Owen to trouble Owen Bertram, actually to clear the obstacles for Wayne Malvin ahead, making his way to the Dragon and Snake List smoother.
Otherwise, why would he, a Commander Lord of the Horizon Bureau and one of the five giants, care about a woman messing around with two Prescotts?
But he absolutely didn't want to lose his most promising subordinate over this matter. Currently, Owen's situation seemed severe; the Central Prison will be... at the bottom of the Five Prefectures for many years.
After a not-too-busy day of official duties ended, Dominic finally clenched his teeth and said: "Owen Bertram must not be allowed to enter the Capital! Here, Nick Liam will definitely protect him."