Kauf's voice, through the megaphone, echoed suddenly from wall to wall, reverberating beneath the roof.

"All ready! Everyone in the set! Masks on! Take your places!"

At a signal the orchestra struck up and the couples started to dance.

It was a wonderfully colorful scene and I saw that Kauf proposed to rehea.r.s.e it thoroughly, doing it over and over without the cameras until every detail reached a practiced perfection. In this I was certain he achieved results superior to Werner's slap, dash, and bang.

Then came the call for action.

"Camera!" Kauf began to bob up and down. "Into it, everybody!"

For fascination and charm this far exceeded the banquet scene which we had witnessed in the taking previously. The music was surprisingly good, so that it was impossible for the people not to get into the swing, and the result was a riotous swirling of gracefully dancing pairs; the girls, selected for their beauty, flashing half-revealed faces toward the camera, displaying eyes which twinkled through their masks in mockery at a wholly ineffectual attempt at concealment.

Enid maintained her stately carriage, but made full use of the dazzling whiteness of her teeth. Early she permitted the attentions of the cowled monk whom she knew to be her lover. Marilyn was everywhere, making mischief the best she could. Shirley stalked about in his satanic red, which would photograph black and appear even more somber on the screen.

Of course the whole was not photographed in a continuous strip from one camera position. I saw that Kauf made several long shots to catch the general atmosphere. Then he made close-up scenes of all the princ.i.p.als and of some of the best appearing extras. At one time he ordered a panorama effect, in which the cameras "pammed," swept from one side to the other, giving a succession of faces at close range.

Finally everything was ready for the climax. Shirley had been playing a sort of Jekyll and Hyde role in which he was at once the young lawyer friend of Enid and the Black Terror. Unmasked and cornered at this function of a society terrified by the dread unknown menace, he was to make the transformation directly before the eyes of everyone, using the mythical drug which changed him from a young man of good appearance and family to the being who was a very incarnation of evil.

For once Kauf did not rehea.r.s.e the scene. Shirley was obviously weakened from his experience and the director wished to spare him. All the details were shouted out through the megaphone, however, and I grasped that the action of this part of the dance was familiar to everyone; it was the big scene of the story toward which all other events had built.

Then came the familiar order. "Camera!"

At the start of this episode the orchestra was playing and the dancers were in motion. Suddenly Gordon, as the hero, strode up to Shirley and unmasked him with a few bitter words which later would be flashed upon the screen in a spoken t.i.tle. Instantly a crowd gathered about, but in such a way as not to obstruct the camera view.

Cornered, seeing that flight was impossible unless he became the Black Terror and possessed the strength and fearlessness of that strange other self, Shirley drew a little vial from his breast pocket and drank the contents. Evidently he knew his Mansfield well. Slowly he began to act out the change in his appearance which corresponded with the a.s.sumption of control by the evil within. His body writhed, went through contortions which were horrible yet fascinating. It was almost as though a new fearful being was created within sight of the onlookers. Not only was the face altered, but the man's stature seemed to shrink, to lose actual inches. I thought it a wonderful exhibition.

The very next instant there came a groan from Shirley, something which at once indicated pain and realization and fear. He lost all control of himself and in a moment pitched forward upon the floor, sputtering and clutching at the empty air. Another cry broke from between his lips, a ghastly contracted shriek as treble as though from the throat of a woman.

This was no part of the story, no skillful bit of acting! It was real!

Even before I had grasped the full significance of the happening Kennedy had dashed forward. The cameras still were grinding and they caught him as he kneeled at the side of the stricken man. Hardly a second afterward Mackay and I followed and were at Kennedy's side. Kauf and the others, their faces weirdly ashen, cl.u.s.tered about in fright.

A third time the invisible hand had struck at a member of the company.

"The Black Terror," with all the horror written into that story, contained nothing as fearful as the menace to the people engaged in its production.

Shirley's skin was cold and clammy, his face almost rigid. While conscious, he was helpless. Kennedy found the little vial and examined it.

"Atropin!" he e.j.a.c.u.l.a.t.ed. "Walter!" He turned to me. "Get some physostigmin, quick! Have Mackay drive you! It's--it's life or death!

Here--I'll write it down! Physostigmin!"

As I raced madly out and down the stairs, Mackay at my heels, I heard a woman's scream. Marilyn! Did she think him dead?

Once in the car, headed for the nearest drug store, grasping wildly at the side or at the back of the seat every few moments as the district attorney skidded around curves and literally hurdled obstacles, I remembered a forgotten fact.

Atropin! That was belladonna, simply another name for the drug. Shirley had procured the stuff for use in his eyes. Nevertheless, he had been aware, undoubtedly, of its deadly nature. Pa.s.sing by Kennedy and the rest of us, he had overheard Kennedy state that the murderer would be identified as soon as all could be a.s.sembled in the projection room.

The heavy man had not cared to face justice in so prosaic a manner.

With the same sense of the melodramatic which had led him to slay Stella Lamar in the taking of a scene, Werner in the photographing of another, he had preferred suicide and had selected the most spectacular moment possible for his last upon earth.

Yes, Shirley was guilty. Rather than wait the slow processes of legal justice he had attempted suicide. Now we raced to save his life, to preserve it for a more fitting end in the electric chair.

x.x.xI

PHYSOSTIGMIN

The first drug store we found was unable to supply us. At a second we had better luck. All in all, we were back at the Manton Pictures plant in a relatively few minutes, a remarkable bit of driving on the part of the district attorney.

Shirley was still in the set. Kennedy at once administered the physostigmin, I thought with an air of great relief.

"This is one of the rare cases in which two drugs, both highly poisonous, are definitely antagonistic," he explained. "Each, therefore, is an antidote for the other when properly administered."

Marilyn was chafing Shirley's cold hands, tears resting shamelessly upon her lids, a look of deep inexpressible fear in her expression.

"Will--will you be able to save him, Professor?" she asked, not once, but a dozen different times.

None of the rest of us spoke. We waited anxiously for the first signs of hope, the first indication that the heavy man's life might be preserved. It was wholly a question whether the physostigmin had been given to him quickly enough.

Kennedy straightened finally, and we knew that the crisis was over.

Marilyn broke down completely and had to be supported to a chair.

Strong, willing arms lifted Shirley to take him to his dressing room.

At that moment Kennedy stood up, raising his voice so as to demand the attention of everyone, taking charge of matters through sheer force of personality.

"I have come here this afternoon," he began, "to apprehend the man or woman responsible for the death of Miss Lamar and Mr. Werner, for the fire in the negative vault, and now for this attempt upon the life of Mr. Shirley."

Not a sound was evident as he paused, no movement save a vague, uneasy shifting of position on the part of some of those who had been on the point of leaving.

"I have indisputable evidence of the guilty person's ident.i.ty, but, nevertheless, for reasons which I will explain to you I have not yet completed my identification. To do so it is necessary that certain photographed scenes be projected on the screen and that certain other matters be made perfectly clear. I am very anxious, you see, to eliminate the slightest possibility of error.

"Mr. Mackay here"--Kennedy smiled, very slightly--"is the district attorney with jurisdiction at Tarrytown. At my request, since yesterday--or, to be exact, since the death of Mr. Werner warned us that no time could be lost--he has carried a 'John Doe' warrant.

Immediately following my identification of the guilty person he--or she--will be placed under arrest. The charge will be the murder of Stella Lamar by the use of poison in a manner which I will explain to you. The trial will take place at White Plains, the county seat of Westchester County, where the murder occurred. Mr. Mackay informs me that the courts there are not crowded; in fact, he personally has been able to devote most of his time to this case. Therefore the trial will be speedy and I am sure that the cold-blooded methods used by this criminal will guarantee a quick sentence and an early trip to the electric chair at Ossining. Now"--suddenly grim--"if everyone will go down to the projection room, the larger one, we will bring matters to their proper conclusion."

I imagined that Kennedy's speech was calculated to spread a little wholesome fear among the people we had considered suspects. In any case that was the result, for an outsider, from the expressions upon the various faces, might have concluded that several of them were guilty.

Each seemed to start off across the studio floor reluctantly, as though afraid to obey Kennedy, yet unable to resist the fascination of witnessing the identification of the criminal, as though feeling that he or she individually might be accused, and yet unwilling to seek safety at the expense of missing Kennedy's revelation of his methods and explanation of their result.

I drew him aside as quickly as I could.

"Craig," I started, eagerly, "isn't this all unnecessary? Can't you see that Shirley is the guilty man? If you will hurry into his room with paper and pencil and get his confession before he recovers from his fright and regains his a.s.surance--"

"What on earth, Walter!" Kennedy interrupted me with a look of surprise which I did not miss even in my excitement. "What are you driving at, anyway?"

"Why, Shirley is the criminal. He--"

"Nonsense! Wasn't an attempt made to kill him just now? Wasn't it evident that he was considered as dangerous to the unknown as Werner, the director? Hasn't he been eliminated from our calculations as surely as the man slain yesterday?"

"No!" I flushed. "Not at all, Craig! This was not an attempt at murder.

There were none of the criminal's earmarks noticeable at Tarrytown or in the banquet scene."