"And if the worst comes and she falls into the hands of the enemy, we must fight our first naval battle and retake her, even if we have to sink a few cruisers to do so," added Natas; "for, come what may, Michael must not be captured."

"Arnold will almost certainly come in his flagship, and if she is what he promised, she should be more than a match for a whole fleet, so I don't think there is much to fear unless the Aurania gets sunk before we reach her," said Tremayne.

Natas and his host devoted the rest of the forenoon to their correspondence, and to making the final arrangements for leaving Alanmere. Tremayne wrote full instructions to his lawyers for the drawing up of the deed, and directed them to have it ready for his signature by two o'clock on the following day. After lunch he rode over to Knaresborough himself with the post-bag, telegraphed an abstract of his instructions in advance, and ordered his private saloon carriage to be attached to the up express which passed through at eight the next morning.

CHAPTER XXI.

JUST IN TIME.

As the train drew up in King's Cross station at twelve the next day, almost the first words that Tremayne heard were—

"Special Pall Mall, sir! Appearance of the mysterious air-ship over Plymouth this morning! Great battle in Austria yesterday, defeat of the Austrians—awful slaughter with war-balloons! Special!"

The boy was selling the papers as fast as he could hand them out to the eager passengers. Tremayne secured one, shut the door of the saloon again, and, turning to the middle page, read aloud to Natas—

"We have just received a telegram from our Plymouth correspondent, to say that soon after daybreak this morning torpedo-boat No. 157 steamed into the Sound, bringing the news that she had sighted a large five-masted air-ship about ten miles from the coast, when in company with the cruiser Ariadne, whose commander had despatched her with the news. Hardly had the report been received when the air-ship herself passed over Mount Edgcumbe and came towards the town.