"I don't quite follow you," said Smith. "If you thought you saw something entering, you must have formed a more or less definite impression regarding it."
"That's the funny part of the business," answered the man doggedly. "I didn't! But as I stood at the top of the stairs I could have sworn that there was something crawling up behind a party-two ladies and two gentlemen."
"A dog, for instance?"
"It didn't strike me as being a dog, sir. Anyway, when the party passed me, there was nothing there. Mind you, whatever it was, it hadn't come in by the front. I have made inquiries everywhere, but without result." He stopped abruptly. "No. 189-Mr. Guthrie's door, sir."
Smith knocked.
"Hallo!" came a muffled voice; "what do you want?"
"Open the door! Don't delay; it is important."
He turned to the hotel detective.
"Stay right there where you can watch the stairs and the lift," he instructed; "and note everyone and everything that passes this door. But whatever you see or hear, do nothing without my orders."
The man moved off, and the door was opened. Smith whispered in my ear:
"Some creature of Dr. Fu-Manchu is in the hotel!"
Mr. Graham Guthrie, British resident in North Bhutan, was a big, thick-set man-gray-haired and florid, with widely opened eyes of the true fighting blue, a bristling mustache and prominent shaggy brows. Nayland Smith introduced himself tersely, proffering his card and an open letter.
"Those are my credentials, Mr. Guthrie," he said; "so no doubt you will realize that the business which brings me and my friend, Dr. Petrie, here at such an hour is of the first importance."
He switched off the light.
"There is no time for ceremony," he explained. "It is now twenty-five minutes past twelve. At half-past an attempt will be made upon your life!"
"Mr. Smith," said the other, who, arrayed in his pajamas, was seated on the edge of the bed, "you alarm me very greatly. I may mention that I was advised of your presence in England this morning."
"Do you know anything respecting the person called Fu-Manchu-Dr. Fu-Manchu?"
"Only what I was told to-day-that he is the agent of an advanced political group."
"It is opposed to his interests that you should return to Bhutan. A more gullible agent would be preferable. Therefore, unless you implicitly obey my instructions, you will never leave England!"
Graham Guthrie breathed quickly. I was growing more used to the gloom, and I could dimly discern him, his face turned towards Nayland Smith, whilst with his hand he clutched the bed-rail. Such a visit as ours, I think, must have shaken the nerve of any man.
"But, Mr. Smith," he said, "surely I am safe enough here! The place is full of American visitors at present, and I have had to be content with a room right at the top; so that the only danger I apprehend is that of fire."
"There is another danger," replied Smith. "The fact that you are at the top of the building enhances that danger. Do you recall anything of the mysterious epidemic which broke out in Rangoon in 1908-the deaths due to the Call of Siva?"
"I read of it in the Indian papers," said Guthrie uneasily. "Suicides, were they not?"
"No!" snapped Smith. "Murders!"
There was a brief silence.
"From what I recall of the cases," said Guthrie, "that seems impossible. In several instances the victims threw themselves from the windows of locked rooms-and the windows were quite inaccessible."
"Exactly," replied Smith; and in the dim light his revolver gleamed dully, as he placed it on the small table beside the bed. "Except that your door is unlocked, the conditions to-night are identical. Silence, please, I hear a clock striking."
It was Big Ben. It struck the half-hour, leaving the stillness complete. In that room, high above the activity which yet prevailed below, high above the supping crowds in the hotel, high above the starving crowds on the Embankment, a curious chill of isolation swept about me. Again I realized how, in the very heart of the great metropolis, a man may be as far from aid as in the heart of a desert. I was glad that I was not alone in that room-marked with the death-mark of Fu-Manchu; and I am certain that Graham Guthrie welcomed his unexpected company.
I may have mentioned the fact before, but on this occasion it became so peculiarly evident to me that I am constrained to record it here-I refer to the sense of impending danger which invariably preceded a visit from Fu-Manchu. Even had I not known that an attempt was to be made that night, I should have realized it, as, strung to high tension, I waited in the darkness. Some invisible herald went ahead of the dreadful Chinaman, proclaiming his coming to every nerve in one's body. It was like a breath of astral incense, announcing the presence of the priests of death.
A wail, low but singularly penetrating, falling in minor cadences to a new silence, came from somewhere close at hand.
"My God!" hissed Guthrie, "what was that?"
"The Call of Siva," whispered Smith.
"Don't stir, for your life!"
Guthrie was breathing hard.
I knew that we were three; that the hotel detective was within hail; that there was a telephone in the room; that the traffic of the Embankment moved almost beneath us; but I knew, and am not ashamed to confess, that King Fear had icy fingers about my heart. It was awful-that tense waiting-for-what?
Three taps sounded-very distinctly upon the window.
Graham Guthrie started so as to shake the bed.
"It's supernatural!" he muttered-all that was Celtic in his blood recoiling from the omen. "Nothing human can reach that window!" "S-sh!" from Smith. "Don't stir."
The tapping was repeated.
Smith softly crossed the room. My heart was beating painfully. He threw open the window. Further inaction was impossible. I joined him; and we looked out into the empty air.
"Don't come too near, Petrie!" he warned over his shoulder.
One on either side of the open window, we stood and looked down at the moving Embankment lights, at the glitter of the Thames, at the silhouetted buildings on the farther bank, with the Shot Tower starting above them all.
Three taps sounded on the panes above us.
In all my dealings with Dr. Fu-Manchu I had had to face nothing so uncanny as this. What Burmese ghoul had he loosed? Was it outside, in the air? Was it actually in the room?
"Don't let me go, Petrie!" whispered Smith suddenly. "Get a tight hold on me!"
That was the last straw; for I thought that some dreadful fascination was impelling my friend to hurl himself out! Wildly I threw my arms about him, and Guthrie leaped forward to help.
Smith leaned from the window and looked up.
One choking cry he gave-smothered, inarticulate-and I found him slipping from my grip-being drawn out of the window-drawn to his death!
"Hold him, Guthrie!" I gasped hoarsely. "My God, he's going! Hold him!"
My friend writhed in our grasp, and I saw him stretch his arm upward. The crack of his revolver came, and he collapsed on to the floor, carrying me with him.
But as I fell I heard a scream above. Smith's revolver went hurtling through the air, and, hard upon it, went a black shape-flashing past the open window into the gulf of the night.
"The light! The light!" I cried.
Guthrie ran and turned on the light. Nayland Smith, his eyes starting from his head, his face swollen, lay plucking at a silken cord which showed tight about his throat.
"It was a Thug!" screamed Guthrie. "Get the rope off! He's choking!"
My hands a-twitch, I seized the strangling-cord.
"A knife! Quick!" I cried. "I have lost mine!"
Guthrie ran to the dressing-table and passed me an open penknife. I somehow forced the blade between the rope and Smith's swollen neck, and severed the deadly silken thing.
Smith made a choking noise, and fell back, swooning in my arms.