But he didn’t grab it. If it had said MORPHINE he would have grabbed it in a second. But it said MORPHIUM . And it wasn’t until about thirty seconds later that he realized that this was a fucking German boat and of course the words would all be different and there was about a 99 percent chance that MORPHIUM was, in fact, exactly the same stuff as MORPHINE . When he realized that he planted his feet in the passageway of the darkened U-boat and let out a deep long scream from way down in his gut. With the noise of the waves, no one heard him. Then he continued onwards and carried out his duty, handing over the stethoscope to Waterhouse. He carried out his duty because he is a Marine.