The water in the cove was very clear, but it had considerable depth. The canoe was brought sharply up by the two girls and both peered down.
Below them could plainly be seen a sunken rowboat. It did not appear to be damaged in any way, but had simply filled and sunk.
"What have you found, girls?" demanded Lance Darby, whose boat was nearest to the twins' canoe at the moment. "Is there some deep sea monster down there?"
"Come and look, Lance," cried Dora.
The moment the young Darby saw the submerged craft he exclaimed:
"Here it is, by gracious!"
"Here is what?" demanded Laura.
"The boat. Hey, Chet! we've found it!" he called to his chum, who quickly turned his own boat's prow in their direction.
"What you found?" demanded Laura's brother, coming nearer.
"Here's Mr. Norman's boat that he lent Short and Long," declared Lance, eagerly. "It was just as you said, Chet. Billy came over here to the island."