"We'll get back to our plane," he said. "We shall get into a spot of trouble if the enemy see us here. If they really think the boys have gone to tell their secret they will be watching for us—though not expecting us quite so soon. Come along!"
They all rowed off to the seaplane. The girls were thrilled to get inside it, and even more excited when it rose into the air and left the sea far below.
"Good-bye, little islands," said Jill, watching them get smaller and smaller as the plane left them behind. "We've had lots of adventures on you—but I'm very glad to leave you, all the same!"
The boys were looking down as the plane flew swiftly along. Suddenly Tom gave a shout.
"Warships! Look! Steaming below us at top speed! Are they going to the islands?"
"They are," said his father. "There will be quite a lot of noise round about your islands very soon! And, look—here are aeroplanes, too, to help the warships."
A flight of aeroplanes flew near the seaplane. The children felt tremendously excited. What a pity they had left before the fun began!
"And now, home we go to your mother," said the children's father, "and to Andy's father. Both will be so very glad to have you back again."
"But what will my father say about his lost fishing-boat?" wondered poor Andy. "Whatever will he say?"