that the Emperor's ears are long."
"So are a jackass's," retorted Dick.
He was sorry next moment, for the girl received his answer in icy silence. In his car, which conveyed them from the tarmac to the Embassy, she received all his overtures in the same silence. A frigid little bow was her farewell to him, while Dick, struggling between resentment and humiliation, sat dumb and wretched at the wheel.
Yet the idea that Fredegonde Valmy had any knowledge of the conspiracy or its leaders never entered Dick's head. He was only miserable that he had offended her, and he would have done anything to have straightened out the trouble.
It seemed impossible that in the year 1940 the peace of the civilized world could be threatened by an international conspiracy bent on restoring absolutism, and yet each day showed more clearly the immense ramifications of the plot. Each day, too, brought home to the investigating governments more clearly the fact that the things they had discovered were few in number in comparison with those they had not.
The headquarters of the conspirators had never been discovered, and it was suspected that the powerful mind behind them was intentionally leading the investigators along false trails.
The conspiracy was world-wide. It had been behind the revolution that had recreated an absolutist monarchy in Spain. It had plunged Italy into civil war. It had thrown England into the convulsions of a succession of general strikes, using the communist movement as a cloak for its activities.
But nobody dreamed that America could become a fertile field for its insidious propaganda. Yet it was behind the millions of adherents of the so-called Freemen's Party, clamoring for the destruction of the constitution. Upon the anarchy that would follow the absolutist regime was to be erected.
Already the mysterious powers had struck. Departments of State had been entered and important papers abstracted. The Germania had mysteriously disappeared in mid-Atlantic, and a shipping panic had ensued. There were tales of mysterious figures materializing out of nothingness. It was known that the conspirators were in possession of certain chemical and electrical devices with which they hoped to achieve their ends.
The Superintendent of the penitentiary had had in his pocket an authorization to stop the execution of Von Kettler after he stood on the trap. Dead, he would be a mere mark of vengeance: alive, he might be persuaded to furnish some clue to the headquarters of the miscreants.
And behind the conspirators loomed the unknown figure that signed itself the Invisible Emperor – in the communications that poured in to the White House and to the rulers of other nations. In the threats that were materializing with stunning swiftness.
Who was he? Rumor said that a former European ruler had not died as was supposed: that a coffin weighted with lead had been buried, and that he himself in his old age, had gone forth to a mad scheme of world conquest with a body of his nobles.
It had been practically a state of war since the shipment of gold, guarded by a detachment of police, had been stolen in broad daylight outside Baltimore, the police clubbed and killed by invisible assailants – as they claimed. The press was under censorship, troops under arms, and it was reported that the fleet was mobilizing.
In the midst of it all, Washington shopped, danced, feasted, flirted, like a swarm of may flies over a treacherous stream.
Intelligence was alert. As Dick started to drive away from the Slovakian Embassy, a man stepped quickly to the side of the car and thrust an envelope into his hand. Dick opened it quickly. He was wanted by Colonel Stopford at once, not at the camouflaged Headquarters at the War Department, but at the real Headquarters where no papers were kept but weighty decisions were made. And to that devious course the Government had already been driven.
Dick parked his car in a side street – it would have been under espionage in any of the official parking places – and set off at a smart walk toward his destination. Nobody would have guessed, from the appearance of the streets, that a national calamity was impending. The shopping crowds were swarming along the sidewalks, cars tailed each other through the streets; only a detachment of soldiers on the White House lawn lent a touch of the martial to the scene.
The building which Dick entered was an ordinary ten-story one in the business section; the various legal firms and commercial concerns that occupied it would have been greatly surprised to have known the identity of the Ira T. Graves, Importer, whose name appeared in modest letters upon the opaque glass door on the seventh story. Inside a flapper stenographer – actually one of the most trusted members of Intelligence's staff – asked Dick's name, which she knew perfectly well. Not a smile or a flicker of an eyelid betrayed the fact.
"Mr. Rennell," said Dick with equal gravity.
The girl passed into an inner room, and a buzzer sounded. In a few moments the girl came back.
"Mr. Graves will be here in a few minutes, Mr. Rennell, if you'll kindly wait in his office," she said.
Dick thanked her, and walked through into the empty office. He waited there till the girl had closed the door behind him, then went out by another door and found himself again in the corridor. Opposite him was a door with the words "Entrance 769" and a hand pointing down the corridor to where the Intelligence service had established another perfectly innocent front. Dick tapped lightly at this door, and a key turned in the lock.
The man who stepped quickly back was one of the heads of the Civil Service. The man at the flat-topped desk was Colonel Stopford. The man on a chair beside him was one of the heads of the police force.
The Colonel, a big, elderly man, dressed in a grey sack suit, checked Dick's commencing salutation. "Never mind etiquette, Rennell," he said. "Sit down. You've heard about the man Von Kettler's escape last night, of course?"
"Yes, sir."
"It's known, then. We can't keep things dark. He vanished from his cell in the death house, three minutes before the time appointed for his execution, though, as a matter of fact, he wasn't going to be hanged. Apparently he walked through the walls.
"There's a sequel to it, Rennell. It seems he had told the assistant-superintendent, a man named Anstruther, that he'd meet him at a restaurant in town that night. He promised to leave him a memento. Anstruther happened to remember this boast of Von Kettler's, and he surrounded the restaurant with armed detectives, on the chance that the fellow would show up. Rennell, Von Kettler was there!"
"He went to this restaurant, sir?"
"He walked in, just before the place was surrounded, engaged a table, and ordered a sumptuous meal. He told the waiter his name, said he expected a friend to join him, walked into the wash-room – and vanished! Two minutes later Anstruther and his men were on the job. Von Kettler never came out of the wash-room, so far as anybody knows.
"In the midst of the hue and cry somebody pointed to the table that Von Kettler had engaged. There was a twenty-dollar bill upon it, and a scrap of paper reading: 'I've kept my word. Von K.'"
Colonel Stopford looked at Dick fixedly. "Rennell, we may be fools," he said, "but we realize what we're up against. It's a big thing, and we're going to need all our fighting grit to overcome it. You're one of the four men we're depending on. We're counting on you because of your record, and because of your degree in science at Heidelberg. The President wishes you to take charge of the whole Eastern Intelligence District, covering the entire south-eastern seaboard of the United States. You are to have complete freedom of action, and all civil, military, and naval officials have received instructions to co-operate with you."
"There goes Mrs. Wansleigh's ball," thought Dick, but he said nothing.
"We're not the hunters, Dick Rennell," went on Colonel Stopford. "We're hiding under cover, and I'm counting on you to turn the tables. They even know my office is here. I had a long distance call from Savannah this morning in mocking vein. They advised me to have the White House watched to-night. I warned the President, and we've posted guards all round it."
"They held the wire while