e water. Tom and his
friends were about to go back to their cabin, for they thought the
excitement over, when, as the young inventor turned from the rail,
he felt a vibration throughout the whole length of the steamer, as
if it had hit on a sand-bar.

Instantly there was a jangling of bells in the engine room, and the
Soudalar lost headway.

"What's the matter?" asked several persons.

They were answered a moment later, for the big whale, even though
grievously wounded in his fight with the killer, had risen not a
hundred feet away from the ship, and was coming toward it with the
speed of an express train.

"Bless my blubber!" cried Mr. Damon. "We must have hit the whale, or
it hit us under the water and now it's going to attack us!"

He had no more than gotten the words out of his mouth ere the great
creature of the deep came on full tilt at the vessel, struck it a
terrific blow which made it tremble from stem to stern, and careen
violently.

There was a chorus of frightened cries, sailors rushed to and fro,
the engine-room bells rang violently, and the captain and mates
shouted hoarse orders.

"Here he comes again!" yelled Mr. Durban, as he hurried to the side
of the ship. "The whale takes us for an enemy, I guess, and he's
going to ram us again!"

"And if he does it many times, he'll start the plates and cause a
leak that won't be stopped in a hurry!" cried a sailor as he rushed
past Tom.

The young inventor looked at the oncoming monster for a moment, and
then started on the run for his cabin.

"Here! Where are you going?" cried Mr. Damon, but Tom did not
answer.

CHAPTER X

OFF IN THE AIRSHIP

As Tom Swift hurried down the companionway he again felt the ship
careen as the whale struck it a powerful blow, and he was almost
knocked off his feet. But he kept on.

Below he found some frightened men and women, a number of whom were
adjusting life preservers about them, under the impression that the
ship had struck a rock and was going down. They had not been up on
deck, and did not know of the battle between the killer and the
whale, nor what followed.

"Oh, I know we're sinking!" cried one timid woman. "What has
happened?" she appealed to Tom.

"It will be all right in a little while," he assured her.

"But what is it? I want to know. Have we had a collision."

"Yes, with a whale," replied Tom, as he grabbed up something from
his stateroom, and again rushed up on deck. As he reached i