"Quick!" he shouted in a loud voice. "The guard! He has escaped!"

I breathed a sigh of relief—if Haj Osis could not see me, no one could—my plan had succeeded.

I dared not return to the throne room and make my escape that way along corridors with which I was familiar for I could already hear the rush of feet toward the ante room door and I was well aware that, although they could not see me, they could feel me and that unquestionably in the rush my mantle of invisibility, or at least a portion of it, would be torn from me, which would indubitably spell my doom.

I ran quickly to the other doorway and unbolted it and as I opened it I looked back at Haj Osis. His eyes were upon the doorway and they were wide with incredulity and horror. For an instant I did not realize the cause and looked quickly behind me to see if I could see what had caused Haj Osis' fright and then it dawned upon me and I smiled. He had seen and heard the bolt shot and the door open as though by ghostly hands.

He must have sensed a vague suspicion of the truth, for he turned quickly toward the other door and screamed a warning in a high falsetto voice. "Do not enter," he cried, "until the five xats are up. It is I who commands—Haj Osis, the Jed."

Closing the door after me and still smiling, I hastened along the corridor, searching for a ramp that would carry me to the upper levels of the palace from which I could easily locate the guard room and the hangar where I had left my ship.

The corridor I had entered led directly into the royal apartments.

At first it was difficult to accustom myself to my invisibility and as I suddenly entered an apartment in which there were several people, my first impulse was to turn and flee, but though I had stepped directly into the view of one of the occupants of the room and at a distance of little more than five or six feet without attracting his attention, although his eyes were apparently directly upon me, my confidence was quickly restored. I continued on across the room as nonchalantly as though I had been in my own quarters in Helium.

The royal apartments seemed interminable and though I was constantly seeking a way out of them into one of the main corridors of the palace, I was instead constantly stumbling into places where I did not care to be and where I had no business, sometimes with considerable embarrassment, as when I entered a cozy, private apartment in the women's quarters at a moment when I was convinced they were not expecting strange gentlemen.

I would not turn back, however, for I had no time to lose, and crossing the room I followed another short corridor only to leap from the frying pan into the fire—I had entered the forbidden apartment of the Jeddara herself. It is a good thing for the royal lady that it was I and not Haj Osis who came thus unexpectedly upon her, for her position was most compromising, and from his harness I judged that her good looking companion was a slave. In disgust I retreated, for there was no other exit from the apartment, and presently I stumbled, entirely by accident, upon one of the main corridors of the palace—a busy corridor filled with slaves, warriors and courtiers, with men, women and children passing to and fro upon whatever business called them, or perhaps seated upon the carved benches that lined the walls.