AS SOON AS HE’D FIRED the salvo, MacGregor took Setter down to a hundred and fifty feet: but he held the same course, following in the tracks of the torpedoes, or rather, under them, towards the enemy, with the submarine’s motors going full ahead and grouped- up; his object was to keep the enemy’s ears full of Setter's own noise and thus smother the sound of the running torpedoes. The enemy he’d fired at had been stopped: they’d been using the same tactics - effective, but dangerous to themselves - as they had last time: and while the torpedoes were running the second ship had been coming in for another run over the top. But when the salvo struck, they broke off the attack, and from Hutchins’s reports it was at once obvious that the undamaged ship had altered course to go to his partner’s
