Farrow is part of the Inquisition deployment sent to the Frostback Basin. Farrow is presently overseeing the deployment of supplies via river to the basin from his auxiliary post upstream.
Farrow first encounters the Inquisitor personally when several Avvar belonging to the Jaws of Hakkon assault his camp. The Inquisitor arrives just as the Hakkonites almost overrun Farrow's post and narrowly manage to defeat them. Farrow briefs the Inquisitor on the supply situation, explaining that destroying hakkonite camps on the river will allow for much safer supply lines for the Inquisition.