Jason introduced Jana and Thoar to Zuppner and Hines, but Lieutenant Dorf did not come to the cabin until after Tarzan had boarded the ship, and it was the latter who introduced them to Dorf.
He presented Lieutenant Dorf to Jana and then, indicated Thoar, "This is Thoar, the brother of The Red Flower of Zoram."
As those words broke upon the ears of Jason Gridley he reacted almost as to the shock of a physical blow. He was glad that no one chanced to be looking at him at the time and instantly he regained his composure, but it left him with a distinct feeling of injury. They had all known it and none of them had told him. He was almost angry at them until it occurred to him that they had all probably assumed that he had known it too, and yet try as he would he could not quite forgive Jana. But, really, what difference did it make, for, whether sister or mate of Thoar or another, he knew that The Red Flower of Zoram was not for him. She had made that definitely clear in her attitude toward him, which had convinced him even more definitely than had her bitter words.
The reunited officers of the expedition had much to discuss and many reminiscences to narrate as the O-220 followed above the slowly moving fleet. It was a happy reunion, clouded only by the absence of Von Horst.
As the dirigible moved slowly above the waters of the Korsar Az, Zuppner dropped occasionally to within speaking distance of Ja of Anoroc, and when the distant coast of Korsar was sighted a sling was lowered and Ja was taken aboard the O-220, where plans for the rescue of David were discussed, and when they were perfected Ja was returned to his ship, and Lajo and the two other Korsars were taken aboard the dirigible.
The three prisoners were filled with awe and consternation as Jason and Tarzan personally conducted them throughout the giant craft. They were shown the armament, which was carefully explained to them, special stress being laid upon the destructive power of the bombs which the O-220 carried.
"One of these," said Jason to Lajo, "would blow The Cid's palace a thousand feet into the air and, as you see. we have many of them. We could destroy all of Korsar and all the Korsar ships."
While Ja's fleet was still a considerable distance off the coast, the O-220 raced ahead at full speed toward Korsar, for the plan which they had evolved was such that, if successful, David's release would be effected without the shedding of blood—a plan which was especially desirable since if it was necessary to attack Korsar either from the sea or the air, the Emperor's life would be placed in jeopardy from the bombs and cannons of his friends, as well as from a possible spirit of vengeance which might animate The Cid.
As the dirigible glided almost silently over the city of Korsar , the streets and courtyards filled with people staring upward in awe-struck wonder.
Three thousand feet above the city the ship stopped and Tarzan sent for the three Korsar prisoners. "As you know," he said to them, "we are in a position to destroy Korsar. You have seen the great fleet coming to the rescue of the Emperor of Pellucidar. You know that every warrior manning those ships is armed with a weapon far more effective than your best; even with their knives and spears and their bows and arrows they might take Korsar without their rifles, but they have the rifles and they have better ammunition than yours and in each ship of the fleet cannons are mounted. Alone the fleet could reduce Korsar, but in addition to the fleet there is this airship. Your shots could never reach it as it sailed back and forth above Korsar, dropping bombs upon the city. Do you think, Lajo, that we can take Korsar?"
"I know it," replied the Korsar.
"Very well," said Tarzan. "I am going to send you with a message to the Cid. Will you tell him the truth?"
"I will," replied Lajo.
"The message is simple," continued Tarzan. "You may tell him that we have come to effect the release of the Emperor of Pellucidar. You may explain to him that the means that we have to enforce our demands, and then you may say to him that if he will place the Emperor upon a ship and take him out to our fleet and deliver him unharmed to Ja of Anoroc, we will return to Sari without firing a shot. Do you understand?"
"I do," said Lajo.
"Very well, then," said Tarzan. He turned to Dorf, "Lieutenant, will you take him now?" he asked.
Dorf approached with a bundle in his hand. "Slip into this," he said.
"What is it?" asked Lajo.
"It is a parachute," said Dorf.
"What is that?" demanded Lajo.
"Here," said Dorf, "put your arms through here." A moment later he had the parachute adjusted upon the Korsar.
"Now," said Jason, "a great distinction is going to be conferred upon you—you are going to make the first parachute jump that has ever been witnessed in Pellucidar."
"I don't understand what you mean," said Lajo.
"You will presently," said Jason. "You are going to take Lord Greystoke's message to The Cid."
"But you will have to bring the ship down to the ground before I can," objected Lajo.
"On the contrary we are going to stay right where we are," said Jason; "you are going to jump overboard."
"What?" exclaimed Lajo. "You are going to kill me?"
"No," said Jason with a laugh. "Listen carefully to what I tell you and you will land safely. You have seen some wonderful things on board this ship so you must have some conception of what we of the outer world can do. Now you are going to have a demonstration of another very wonderful invention and you may take my word for it that no harm will befall you if you do precisely as I tell you to. Here is an iron ring," and he touched the ring opposite Lajo's left breast; "take hold of it with your right hand. After you jump from the ship, pull it; give it a good jerk and you will float down to the ground as lightly as a feather."
"I will be killed," objected Lajo.
"If you are a coward," said Jason, "perhaps one of these other men is braver than you. I tell you that you will not be hurt."
"I am not afraid," said Lajo. "I will jump."
"Tell The Cid," said Tarzan, "that if we do not presently see a ship sail out alone to meet the fleet, we shall start dropping bombs upon the city."
Dorf led Lajo to a door in the cabin and flung it open. The man hesitated.
"Do not forget to jerk the ring," said Dorf, and at the same time he gave Lajo a violent push that sent him headlong through the doorway and a moment later the watchers in the cabin saw the white folds of the parachute streaming in the air. They saw it open and they knew the message of Tarzan would be delivered to The Cid.
What went on in the city below we may not know, but presently a great crowd was seen to move from the palace down toward the river, where the ships were anchored, and a little later one of the ships weighed anchor and as it drifted slowly with the current its sails were set and presently it was moving directly out to sea toward the fleet from Sari.
The O-220 followed above it and Ja's flagship moved forward to meet it, and thus David Innes, Emperor of Pellucidar, was returned to his people.
As the Korsar ship turned back to port the dirigible dropped low above the flagship of the Sarian fleet and greetings were exchanged between David and his rescuers—men from another world whom he had never seen.
The Emperor was half starved and very thin and weak from his long period of confinement, but otherwise he had been unharmed, and great was the rejoicing aboard the ships of Sari as they turned back to cross the Korsar Az toward their own land.
Tarzan was afraid to accompany the fleet back to Sari for fear that their rapidly diminishing store of fuel would not be sufficient to complete the trip and carry them back to the outer world. He followed the fleet only long enough to obtain from David explicit directions for reaching the polar opening from the city of Korsar .