CHAPTER XXIV

A MYSTERIOUS ENEMY

"Here's a good place to make the fort," said Russ as he and Laddie reached the beach not far from Cousin Tom's bungalow and looked about them. "We'll build the fort right here, Laddie, near this hill of sand."

"What's the hill for?"

"That's where we can put our flag. They always put a flag on a hill where everybody can see it."

"But we haven't a flag. Where are we going to get one?"

"Say, you ask almost as many questions as Vi," exclaimed Russ. "We'll make a flag!"

"How?"

"Out of a handkerchief. You've a handkerchief and so have I. One is enough for both of us and we can take the other and make a flag of it."