Pick's messenger duties require him to run around much of the camp. The Warden can encounter him near the Ash Warrior Leader, at Loghain's tent, at King Cailan's tent, near the Quartermaster, by the Sergeant lecturing over the genlock corpse, and at the southeastern end of the west side of Ostagar, overlooking the valley, close to a praying Chantry priest. He can only be found during the day.
The Warden has several options when speaking to Pick. If the Warden has sufficiently high Cunning, or one point in Coercion, they can persuade Pick to hand over Ser Garlen's Sword. If a persuasion check fails when Pick asks what he should tell the others about the missing sword, the Warden has the option to kill him.