and lightning. The wind howled; the rain came down in torrents; and the waves got so high they splashed right over the boat.
Presently there was a big BANG! The ship stopped and rolled over on its side.
"What's happened?" asked the Doctor, coming up from downstairs.
"I'm not sure," said the parrot; "but I think we're ship-wrecked. Tell the duck to get out and see."
So Dab-Dab dived right down under the waves. And when she came up she said they had struck a rock; there was a big hole in the bottom of the ship; the water was coming in; and they were sinking fast.
"We must have run into Africa," said the Doctor. "Dear me, dear me!—Well—we must all swim to land."
But Chee-Chee and Gub-Gub did not know how to swim.
"Get the rope!" said Polynesia. "I told you it would come in handy. Where's that duck? Come here, Dab-Dab. Take this end of the rope, fly to the shore and tie it on to a palm-
