"The matter is one of vast importance to me," I replied. "I cannot decide it in a moment. Return me to my cell so that I may think it over and discuss it with U Dan, who also has much at stake."

"Take it back to its cell," ordered Bandolian; and then, to me: "You shall have time, but not much. My patience is exhausted."

I had no plan. I was practically without hope, yet I had gained at least a brief reprieve for Dejah Thoris. Perhaps a means of escape might offer itself. Upon such unsubstantial fare I fed the shred of hope to which I clung.

My cell mates were both surprised and relieved when I was returned to them. I told them briefly of what had occurred in the audience chamber of Bandolian. U Dan showed real grief when he learned that Dejah Thoris was in the clutches of the Morgors, and cursed himself for the part he had taken in bringing her and me to a situation in which we faced the alternatives of death or dishonor.

"Vain regrets never got anyone anywhere," I said. "They won't get us out of this cell. They won't get Dejah Thoris and Vaja out of Bandolian's tower. Forget them. We have other things to think about." I turned to Vorion. "You have spoken of the possibility of escape. Explain yourself."

He was not accustomed to being spoken to thus peremptorially by one of the lower orders, as the Morgors considered us; but he laughed, taking it in good part. The Morgors cannot smile. From birth to death they wear their death's head grin-frozen, unchangeable.

"There is just a chance," he said. "It is just barely a chance. Slender would be an optimistic description of it, but if it fails we shall be no worse off than we are now."

"Tell us what it is," I said.

"I can pick the lock of our cell door," he explained. "If luck is with us, we can escape from this building. I know a way that is little used, for I was for long one of the prison guard."

"What chance would we have once we were in the streets of the city?" demanded U Dan. "We three, at least, would be picked up immediately."

"Not necessarily," said Vorion. "There are many slaves on the avenues who look exactly like Zan Dar. Of course, the color of the skin of you men from Garobus might attract attention; but that is a chance we shall have to take."

"And after we are in the streets?" asked Zan Dar. "What then?"

"I shall pretend that I am in charge of you. I shall treat you as slaves are so often treated that it will arouse no comment nor attract any undue attention. I shall have to be rough with you, but you will understand. I shall herd you to a field where there are many ships. There I shall tell the guard that I have orders to bring you to clean a certain ship. In this field are only the private ships of the rich and powerful among us, and I well know a certain ship that belongs to one who seldom uses it. If we can reach this ship and board it, nothing can prevent us from escaping. In an hour from now, we shall be on our way to Zanor-if all goes well."

"And if we can take Vaja and Dejah Thoris with us," I added.

"I had forgotten them," said Vorion. "You would risk your lives for two females?"

"Certainly," said U Dan.

Vorion shrugged. "You are strange creatures," he said.

"We Morgors would not risk a little finger for a score of them. The only reason that we tolerate them at all is that they are needed to replenish the supply of warriors. To attempt to rescue two of you is may easily end in disaster for us all."

"However, we shall make the attempt," He said. "Are you with us, Zan Dar?" I asked the Savator.

"To the end," he said, "whatever it may be."

Again Vorion shrugged. "As you will," he said, but not with much enthusiasm; then he set to work on the lock, and in a very short time the door swung open and we stepped out into the corridor. Vorion closed the door and relocked it. "This is going to give them food for speculation," he remarked.

He led us along the corridor in the opposite direction from that in which we had been brought to it and from which all those had come who had approached our cell since our incarceration. The corridor became dark and dusty the farther we traversed it. Evidently it was little used. At its very end was a door, the lock to which Vorion quickly picked; and a moment later we stepped out into a narrow alleyway.

So simple had been our escape up to now that I immediately apprehended the worst: such luck could not last. Even the alley which we had entered was deserted: no one had seen us emerge from the prison. But when we reached the end of the alley and turned into a broad avenue, the situation was very different. Here were many people-Morgors upon the sidewalks, slaves in the gutters, strange beasts of burden carrying their loads of passengers upon the pavement.

Now, Vorion began to berate and cuff us as we walked in the gutter and he upon the sidewalk. He directed us away from the central plaza and finally into less frequented avenues, yet we still passed too many Morgors to suit me. At any minute one of them might notice the unusual coloration of U Dan's skin and mine. I glanced at Zan Dar to note if the difference between his coloration and ours was at all startling, and I got a shock. Zan Dar's skin had been blue. Now it was purple!

It tools me a moment to realize that the change was due to the rosy light of the volcano's flames turning Zan Dar's natural blue to purple.

We had covered quite a little distance in safety, when a Morgor, passing, eyed us suspiciously. He let us go by him; then he wheeled and called to Vorion. "Who are those two?" he demanded. "They are not Savators."

"They have been ill," said Vorion, "and their color has changed." I was surprised that the fellow could think so quickly.

"Well, who are you?" asked the fellow, "and what are you doing in charge of slaves while unarmed?"

Vorion looked down at his sides in simulated surprise. "Why, I must have forgotten them," he said.

"I think that you are lying to me," said the fellow. "Come along with me, all of you."

Here seemed an end of our hopes of escape. I glanced up and down the street. It appeared to be a quiet, residential avenue. There was no one near us. Several small ships rested at the curb in front of drear, brown domiciles. That was all. No eyes were upon us. I stepped close to the fellow who had thus rashly presented himself as an obstacle in the way of Dejah Thoris' rescue. I struck him once. I struck him with all my strength. He dropped like a log.

"You have killed him," exclaimed Vorion. "He was one of Bandolian's most trusted officers. If we are caught now, we shall be tortured to death."

"We need not be caught," I said. "Let's take one of these ships standing at the curb. Why take the time and the risk to go farther?"

Vorion shook his head. "They wouldn't do," he said. "They are only for intramural use. They are low altitude ships that would never get over even a relatively small mountain range; but more important still, they cannot be rendered invisible. We shall have to go on to the field as we have planned."

"To avoid another such encounter as we have just experienced," I said, "we had better take one of these ships at least to the vicinity of the field."

"We shall be no worse off adding theft to murder," said Zan Dar.

Vorion agreed, and a moment later we were all in a small ship and sailing along a few yards above the avenue. Keenly interested, I carefully noted everything that Vorion did in starting the motor and controlling the craft. It was necessary for me to ask only a few questions in order to have an excellent grasp of the handling of the little ship, so familiar was I with the airships of two other worlds. Perhaps I should never have the opportunity to operate one of these, but it could do no harm to know how.