Giving a hasty nod to Beleth, Cade very briefly appears to come back to himself-- and then disappears again when Iskandar starts shouting. His bow is raised, arrow nocked, and Cade does exactly as instructed, a machine forged by military discipline and an inclination to snap to attention when an authoritative voice gives him a command.
He's a pretty good shot, and between Beleth and Iskandar giving command, Cade's nerves have subsided slightly. Just do as you're told, Harimann, and everything will turn out fine.
Never mind that it's his former commanding officer down there.