I couldn't think of anything to say, and I thought the silence was going to last forever, but finally Llana of Gathol broke it. "How long will we remain invisible?" she asked.

"A little more than ten zodes from the time you took the sphere," said Rojas. "I shall become visible first, and then probably either John Carter or Ptor Fak, as I imagine that they took the spheres about the same time; you will be the last to regain visibility." Her voice was perfectly normal; there was no trace of nervousness nor bitterness in it. I couldn't make the girl out.

Perhaps she was the type that would bide its time until it could wreak some terrible revenge. I'll tell you that I had plenty to think about on that trip to Helium.

Shortly after dawn, I saw a most amazing phenomenon-I saw just a suggestion of the outline of a shadowy form beside me; it took shape slowly: Rojas was materializing! The effects of the invisibility compound were disappearing, and as they disappeared Rojas appeared. There she sat gazing out across the Martian landscape, the shadow of a happy smile upon her lips; somehow she reminded me of a cat which had just swallowed a canary.

"Kaor!" I said, which is the Barsoomian equivalent of Good Morning, Hello, or How do you do? — in other words, it is a Barsoomian greeting.

Rojas looked in my direction but of course she could not see me.

"Kaor," she replied, smiling. "You must be very tired, John Carter; you have had no sleep all night."

"When Llana of Gathol awakens, I shall sleep," I replied; "she can handle the controls quite as well as I."

"I have never been beyond the forests of Invak before," said Rojas. "What a drab, lonely world this is."

"You will find the Twin Cities of Helium very beautiful," I said. "I hope that you will like it there, Rojas."

"I am sure that I shall," she said; "I am looking forward to being in Helium with you, John Carter."

I wondered what she meant by that. The girl was an enigma; and I gave up trying to find a solution for her, and when Llana of Gathol spoke a moment later, and I knew that she was awake, I asked her to take the controls.

"We will cruise around outside of Helium," I said, "until we have all regained visibility," and then I lay down and fell asleep.

It was late that night before we had all regained visibility, and the next morning I approached Helium. A patrol boat came up to meet us, and recognizing my flier, it came alongside. The officer in command, and, in fact, the whole crew were overjoyed to see both Llana of Gathol and myself, alive and safe. The patrol boat escorted us to the hangar on the roof of my palace, where we received a tremendous welcome, as we had both been given up for dead long since.

Ptor Fak, Llana, and Rojas were behind me when I took Dejah Thoris in my arms; then I turned and presented Rojas and Ptor Fak to her.

"Had it not been for Rojas," I told Dejah Thoris, "none of us would have been here," and then I told her very briefly of our capture and incarceration in Invak.

I watched Rojas very closely as Dejah Thoris took both her hands in hers and kissed her on the forehead; and then, to my surprise, Rojas threw her arms about her and kissed her squarely on the mouth; the girl was absolutely bewildering.

After we had all breakfasted together Dejah Thoris asked me what my plans were now. "I shall see Tardos Mors immediately," I replied, "and after I have arranged for the dispatch of a fleet for Gathol, I shall fly there myself, alone, to reconnoiter."

"Why alone?" demanded Dejah Thoris; "But why should I ask? It has always been your way to do things alone."

I saw Tardos Mors and made the necessary arrangements for the dispatch of a fleet to Gathol; and then I returned to my palace to bid Dejah Thoris goodby; and as I passed through the garden, I saw Rojas sitting there alone.

"Come here a moment, John Carter," she said; "I have something to say to you."

Here it comes, I thought; well, it would have to be gotten over sooner or later, and it would be a relief to get it over at once.

"You deceived me, John Carter," she said.

"I know I did," I replied.

"I am so glad that you did," she said, "for I deceived you. I admired you, John Carter, tremendously; but I never loved you. I knew that you had come to Invak in a flier; and I knew that if you could be helped to escape in it, you might be persuaded to take me with you. I hate Invak; I was most unhappy there; I would have sold my very soul to have escaped, and so I tried to make you love me so that you would take me away. I thought I had succeeded, and I was very much ashamed of myself. You can never know how relieved I was when I found that I had failed, for I admired you too much to wish to bring unhappiness to you."

"But why did you pretend to be so jealous of Llana of Gathol?" I asked.

"To make my love seem more realistic," she said.

"You have lifted a great weight from my conscience, Rojas. I hope that you will like it here and that you will be very happy."

"I shall love it," she said, "for I already love Dejah Thoris, and she has asked me to stay here with her."

"Now I know that you will be happy here," I told her.

"I am sure of it, John Carter-I have seen some very handsome men already, and they can't all have mates."

The flight to Gathol was uneventful. I had taken an invisibility sphere some time before leaving Helium, and before I reached Gathol I had completely disappeared.

As I approached the city, I could see Hin Abtol's army drawn up around it; there were many more than there had been when I escaped in the Dusar; and on the line from which I had stolen the ship were at least a hundred more fliers, many of them large fighting ships, with some transports.

Presently several patrol boats rose to meet me. I was flying no colors, and when they hailed me I made no response. A couple of them ranged alongside me, and I could hear the exclamations of astonishment when they discovered that there was no one aboard the ship and no pilot at the controls.

I think they were rather frightened, for no one attempted to board me; and they let me fly on without interfering.

I dropped down to the Panar line, and set my flier down beside the last ship in it. One of the patrol ships landed also, and was soon surrounded by a crowd of officers and warriors, who approached my ship with every sign of curiosity written on their faces.

"This ship is piloted by Death," I said in a loud voice; "it is death to approach too close or to try to board it."

The men stopped then, and most of them fell back. I dropped to the ground and wandered about at will, my purpose being to gather what information I could from conversations among the officers. These men, however, were so interested in my ship that I gained no information from them; and so I wandered away and walked down the line to the flagship, which I boarded, passing the sentry at the foot of the ladder and the watch on deck. It seemed strange to walk there among the enemy, unseen; all that I had to do was to avoid contact with any of them, and I was safe from detection.

I went to the cabin of the commander of the fleet. He was sitting there with several high-ranking officers, to whom he was giving instructions.

"As soon as Hin Abtol arrives from Pankor," he was saying, "we are to take up several thousand men equipped with equilibrimotors and drop them directly into the city; and then, with Gathol as a base, we shall move on Helium with fully a million men."

"When will Hin Abtol arrive?" asked one of the officers.

"Tonight or tomorrow morning," replied the commander. "He is coming with a large fleet."

Well, at last I had learned something; and my plans were formulated instantly. I left the flagship and returned to my flier, which was being examined by a considerable number of officers and men, but from a safe distance.