matter.

Rose and Violet took their dolls down and played with them there. Russ,
after a while, gave up being a pirate, and said his "prisoners" could
all go, but they seemed to like staying around the driftwood house.

"If we had a door on it we could stay in it all night," said Vi. "Why
didn't you make a door, Russ?"

"Too hard work," he answered. "Anyhow we don't want to stay down here
all night."

"The waves might come up and wash us away," said Rose.

Laddie, who had been smoothing the sand in one corner of the pirate
bungalow, now stopped and seemed to be thinking hard.

"What's the matter?" asked Russ.

"I have a new riddle," was the answer. "It's about a door."

"Is it why does a door swing?" asked Violet. "'Cause if it is, I can
answer that one. I've heard it before. A door swings because it isn't a
hammock."

"Nope! 'Tisn't that," said Laddie. "This is my new riddle. What goes
through a door, but never comes into the room?"

"Say it again," begged Russ, who had not been listening carefully.