“I am rather sorry I sent him,” said Clif, regretfully. “He’s such a timid little chap that it may——”

A shrill yell interrupted him, then came a distant rattling and banging, then another wild shriek.


CHAPTER XIX. THE MYSTERY SOLVED.

The three middies raced to the upper deck just in time to see Nanny, white-faced and trembling, emerge from the after conning tower.

“Murder! help! help!” he wailed. “Oh, Clif, some one is down there. I heard a voice singing. Oh, let’s go away.”

“What is the matter?” demanded Joy, striving hard to conceal a laugh. “What in thunder did you see?”

“N-nothing, but I heard a cracked kind of a voice,” whimpered the little lad, almost in tears. “It—it seemed to come from the roof. Oh, the old tub is haunted! Let’s leave.”

“Never mind, youngster,” said Clif, kindly. “We heard the voice, too. There’s some mystery about it, but it isn’t ghosts. That’s silly. Did you get the matches?”