"We haven't any spades," said the little girls. "The Captain has the only one."
The young man went into the hut, and soon appeared with a pitchfork and two spades of very small proportions.
"And now," said Charity, "where is Security? It must be the hut, of course!"
In a very few minutes each child was digging four paces from the hut. But Charlie began to flag, whereupon the young man whispered something to him.
"Your Captain is ill," he said; "he's going to rest. I'll take his place."
Charlie sat down on the step leading to the hut and watched the others with a rather bitter face. It was hard to be bowled over so soon, just when he would like to prove his strength to be superior to the girls.
Digging went on steadily, but the three little girls made slow progress.
The young man dug too, but he presently said, "I'll give another clue:"
"By the side of a singer's home, a hand's span from the base."
The little girls were completely puzzled. Charlie's bright eyes roved to and fro. At last his face lightened.