"My son—is he dead?" asked the elder Frenchman, who was almost beside himself with anxiety.

"No; he's fainted," replied Dacres. "He'll be all right directly Hambrough takes him in hand."

Quickly the crew of the "Meteor" rigged up a rigid stretcher, and upon this, lashed on to prevent him from slipping, Henri de la Fosse was taken on board the airship. As soon as the rest of the officers and men were embarked the Dreadnought of the Air rose to a height of ten thousand feet.

"Well?" asked Whittinghame with his characteristic brevity when asking a question.

"It's all right up to the present, sir," said Dacres. "Your brother is safe and so is Admiral Maynebrace. I've seen them both. It is essential that we should attempt their rescue at three o'clock Friday morning."

In spite of his efforts to suppress it, Dacres gave a prodigious yawn.

"Excuse me," he continued, "but I've had no sleep for nearly forty hours and precious little food."

"Then, make a good meal," said Whittinghame, "and have a sound sleep. There's plenty of time before the day and hour you mention. When you've told your story we'll lay our plans—no, not now. I refuse to hear another word till you have eaten and slept."

The appearance of the "Meteor" in the very nick of time was not a coincidence. As soon as Antoine de la Fosse had set the wireless apparatus in order a message came through from Whittinghame's secret agent at Naocuanha to the effect that two Europeans, posing as electrical engineers, had escaped from the city by taking forcible possession of a locomotive. Directly Whittinghame heard this he ordered the final work of assembling the four remaining sections of the "Meteor" to be carried out with the utmost celerity; but before the ballonettes could be recharged, another "wireless" was received announcing that the locomotive had been derailed after having been the means of destroying two of the Valderian air-fleet. It was supposed that the fugitives had escaped since there were no traces of their bodies under the wreckage.

"They've outwitted the rascals, de la Fosse," exclaimed the Captain when he received the news. "Trust Dacres to wriggle out of a tight corner. He'll see that your son comes through this business, too. Now, where do you think they'll make for?"