Dracula by Bram Stoker Chapter 7 Page 30

Before I could say a word, or move forward to seize him, he sprang on the bulwark and deliberately threw himself into the sea. I suppose I know the secret too, now. It was this madman who had got rid of the men one by one, and now he has followed them himself. God help me! How am I to account for all these horrors when I get to port? When I get to port! Will that ever be?

4 August. — Still fog, which the sunrise cannot pierce, I know there is sunrise because I am a sailor, why else I know not. I dared not go below, I dared not leave the helm, so here all night I stayed, and in the dimness of the night I saw it, Him! God, forgive me, but the mate was right to jump overboard. It was better to die like a man. To die like a sailor in blue water, no man can object. But I am captain, and I must not leave my ship.