"Yes, sir; I spoke to him when he first came 73 on board; but he didn't answer me, or take any notice of me when I spoke to him, and I got tired of it." 73 "Open that door quickly, Dave," said the captain suddenly. The steward promptly obeyed the order, and Christy saw that there was no one in the passage. He told his companion to close the door, and Dave was puzzled to know what this movement could mean. "I beg your pardon, Captain Passford, and I have no right to ask any question; but I should like to know why you make me open that door two or three times for nothing," said Dave, in the humblest of tones. "I told you to open it so that I could see if there was anybody at the door. This is my secret, Dave. I have twice found Mulgrum at that door while I was talking to the first lieutenant. He pretended to be cleaning the brass work." "What was he there for? When a man is as deaf as the foremast of the ship what would he be doing at the door?" "He was down on his knees, and his ear was not a great way from the keyhole of the door." 74 "But he could not hear anything." 74 "I don't know: that is what I want to find out. The mission I have for you, Dave, is to watch Mulgrum. In a word, I have my doubts in regard to his deafness and his dumbness." "You don't believe he is deaf and dumb, Captain Passford!" exclaimed the steward, opening his eyes very wide, and looking as though an earthquake had just shaken him up. "I don't say that, my man. I am in doubt. He may be a deaf mute, as he represents himself to be. I wish you to ascertain whether or not he can speak and hear. You are a shrewd fellow, Dave, I discovered some time ago; in fact the first time I ever saw you. You may do this job in any manner you please; but remember that your mission is my secret, and you must not betray it to Mulgrum, or to any other person." "Be sure I won't do that, Captain Passford." "If you obtain any satisfactory information, convey it to me immediately. You must be very careful not to let any one suspect that you are watching him, and least of all to let Mulgrum know it. Do you understand me perfectly, Dave?"