The rowboat rocks as you jump into it, your partner sways unsteadily and throws out their arms for balance. In that moment you grab for the hand with the knife—but once your hand has closed about their wrist, they twist around using your own momentum to throw you into the water.
After the shock of hitting the water you open your eyes, and see only darkness. First you try for the surface, but don’t break through. Thinking you must have gotten twisted around you try the other direction. Again you cannot find the surface, and again you change direction. Again,and again, each time it is harder and your air gets shorter. With each change your panic gets greater and you change directions faster. The more you thrash, the less you think, until you hardly notice your legs getting tangled by something, and soon you do not think at all.