"Mun Bun," declared Laddie, breathing very hard, for he had run all the way from the stateroom.

"Mun Bun isn't a riddle," said his sister. "He can't be."

"Well, he's lost," declared Laddie. "We can't find him. He was there one minute, and just the next he was gone. And Mother can't find him, and Vi's gone to hunt for Daddy, and—and—anyhow, Mun Bun has lost himself and we don't any of us know what has become of him."


CHAPTER VI

THE SEA-EAGLE

Mun Bun was not a very disobedient little boy; but as Daddy Bunker said, he had a better "forgetery" than he had memory. Mun Bun quite forgot that Mother Bunker had told him not to leave the bigger stateroom where she was setting things to rights in her usual careful way. For, as they were to be several days on the steamship, she must have a place for things and everything in its place, or she could not comfortably take care of Daddy and six children.

Then, Mun Bun was so quick! Just as Laddie said: one minute he was there, and the next minute he wasn't. He seemed to glide right out of sight. Cowboy Jack had called Mun Bun a blob of quicksilver; and you know you cannot put your finger on a blob of quicksilver, it runs so fast.

That is what Mun Bun had done. Mother Bunker's back was turned; Russ and Rose were on deck; the other three children, the twins and Margy, were busy prying into every corner of the stateroom to "see what it was meant for," when Mun Bun just stepped out.

How long he had been gone when their mother discovered the little boy's absence, of course she did not know. She sent Laddie and Vi flying for help—the one for Russ and Rose and the other for their father. She dared not leave the staterooms herself for fear Mun Bun would reappear and be frightened if he did not find her.