I tried a smile. My lips felt like stiff rubber. "You had me worried. I'm glad it's all cleared up."

"Yeah," the sergeant said heavily. "So are we."

They turned away. I managed to utter a reply to their casual goodbyes. They crossed the street and climbed into the helicopter. A moment later, it rose slowly into the air. I watched it until it had dwindled out of sight, lost in the afternoon haze.

All over, I thought. The mystery all cleared up. No mystery at all. There never had been one. Lois Worthington's murder had been the one tangible proof I had that the aliens were real and dangerous. But she had been killed by a jealous lover.

There were no more threads to cling to.

I stumbled back into the trailer. Dropping onto the couch under the long window, I lay motionless, my eyes open and unseeing, fixed on some distant point beyond the ceiling. My mind turned over sluggishly. With careful logic I tried to examine all the facts. Like a policeman, I thought, investigating a crime. A reported crime. You check each suspect, eliminating them one by one. When the list is limited that's not hard. I had done that. None of my four suspects was capable of the monstrous plot I had imagined. None had super-human powers. So there were no suspects. Better take another look at the crime, a close look. Question the witnesses, see if their testimony is reliable, make sure it stands up. This time there was only one witness who claimed that a crime had been committed, an attempt at murder. The victim himself, Paul Cameron. Queer duck, a bastard, mother's dead so he lives alone, keeps pretty much to himself, no close friends. Got a vivid imagination. Keeps hearing things. Is he the only witness to the fact that there was a crime? Yes. Well, how do we know he's not lying? How do we know it's not all in his mind?

And that was it. Investigation completed. There was no crime. There were no aliens.

For long, painful, unaccounted minutes I confronted this inevitable conclusion. Then, in one of those odd mental leaps that seem to have no apparent motive, like the sudden sideways jump of a grasshopper, I thought of Swami Fallaninda, the Exalted One. I could hear the vibrant echo of his voice. "Know that when your mind is opened to truth the powers of darkness can hold no influence over you." A wise platitude, I thought. When you examined with the cold objectivity of distance any of the little man's pompous phrases, they resolved themselves into very ordinary statements. His devoted circle of followers thought he was a man apart, a special being in touch with the Cosmic Consciousness, a man one with God. The brief episode with the little mystic had left an unusually deep impression on me—but the message he brought back from his astral plane could not save me.

There was another god left to me, one I had not turned to, the last one who stood between me and the powers of darkness which sought to possess my mind—the man of science.

18