"Mun Bun is a reg'lar riddle," said Laddie. "He runs away and we can't
find him; and we hunt for him and there he ain't. Then he comes back by
himself--sometimes."

"Is that a riddle?" asked his twin scornfully.

"We-ell, maybe it will be when I get it fixed right."

"I don't think much of it," declared Violet. "And I want to find Mun
Bun."

"Don't you other children get lost on this big ship," said Mother
Bunker. "Don't go off this floor."

"You mean deck, don't you, Mother?" asked Russ politely. "Floors are
decks on board ship. Daddy said so."

"You'd better go and look for him, Russ; and you, too, Rose," the
anxious woman said, as Daddy Bunker strode away. "But you other three
stay right here by me. I thought that traveling on the train with you
children was sometimes trying; but living on shipboard is going to be
worse."

"Yes, Mother," said Rose gravely. "There are so many more places for Mun
Bun to hide in aboard this ship. Come, Russ."

The two older Bunker children did not know where to look for their
little brother. But Russ had an idea. He usually did have pretty bright
ideas, and Rose admitted this fact.