"Malediction!" cried Canaris, in uncontrollable fury, "that's your last shout," and, taking quick aim, he pulled his revolver on the shouting Somali.
A stunning report, a hollow groan, and down came the savage all in a heap, while the heavy shield bounded with a clatter over the stones.
CHAPTER XIV.
OVER THE WALLS.
The crack of the revolver, following closely on the Somali's loud yell, had barely died away in echoes when the dark street seemed fairly to burst into life.
The fugitives did not wait to see the result of the shot, but as they dashed madly forward they heard the people calling wildly to one another as they hurried from their dwellings.
Even Melton kept up with wonderful endurance. The excitement had given him false strength, and he kept even pace with Guy and Canaris.
Close at hand was the termination of the street, and as they were within ten yards of it a big Somali suddenly leaped out and barred the way.
The fugitives were going at a rate of speed which it was simply impossible to check. Canaris was a foot in advance, and in an instant more he would have impaled himself on the savage's outpointed spear.
It was too late to use the revolver which he still carried in his hand, but quick as a flash he hurled it with all his might, and with such correct aim that it landed plump on the fellow's head with an ugly crack.
The Somali howled with agony, letting the spear drop from his nerveless hands, and just as it clattered to the ground Canaris was upon him with a rush, and down they went together, the Somali undermost.
Canaris was up in a trice, and Guy and Melton, bounding on behind, trampled the half unconscious savage under their feet.
"Go on," said Guy fiercely. "We will outwit them yet. Brace up, Melton; we'll soon be out of this hole."
Forbes gritted his teeth to suppress a cry of pain.
"I can't keep up much longer," he said. "I'll faint from loss of blood."
The place they had just entered was the great trading locality and slave market of the town. At this time of year it was deserted, but the empty stalls and booths stood about in endless confusion.
The wisdom of the route chosen by Canaris was now apparent, for this labyrinth of paths, which wove an intricate network through the stalls, offered just the opportunity they wanted; and, following the Greek's guidance, they twisted in and out in a tortuous line that gradually brought them toward the opposite side of the market.
The outcry behind them had by this time swelled to a perfect tumult, and the night air bore it to their ears with startling distinctness.
Fortunately for the fugitives, this vast court was surrounded by grim slave prisons, and they encountered no one in their flight. They reached the opposite side of the market in safety, and, plunging in among the mass of empty prisons, ran on, panting and breathless.
The Greek's white burnous fluttered on ahead, turning angle after angle, diving into dark alleys and shooting across open spaces. At last he stopped and, too exhausted to speak, waved his hand in triumph at the frowning wall of the town that towered directly over their heads for twenty feet.
Close by the wall was a circular stone tower, partly in ruins, and into this Canaris dived eagerly. It was an anxious moment to the two who waited on the outside, but at last the Greek reappeared in triumph with his hands full. The Jewish merchant had kept his promise.
He paused a second or two to listen to the outcry in the town.
"They are coming nearer," he said. "Keep cool and don't get excited.
They will search every stall in the market before a man comes near us, and besides this is the last place they would look. They will never suspect us of any intention to scale the wall. Still we must lose no time," he added. "Now here is a box of shells apiece; put them in your pockets, buckle these sabers around your waists, take the rifles I bought. They are better, so you may throw the others away."
"Forbes can't carry one," said Guy. "What shall we do with it?"
"Leave it behind," replied Canaris. "We have burden enough. I had the Jew put up the stuff in three oilcloth bags. We must divide it into two loads."
He turned the contents of all on the ground.
"Yes, everything is here," he said. "Crackers, dates, figs, two lamps, a box of candles, matches, and two flasks of palm oil. Now, then, for the final move."
He divided the stuff into two bags, and then, going back into the guard tower, came out with a bunch of long ropes.
"Hurry up," said Guy. "Do you observe how close the sounds are coming?"
"They are searching the market," said Canaris calmly. "They take us for a party of drunken Arabs out on a lark."
"Then they don't suspect the truth?" asked Guy.
Canaris laughed.
"If it were known that the Emir's English prisoners had escaped," he said, "the fiends up yonder would be making more noise than the surf that breaks on the rocks at Bab el Mandeb."
The ropes had at one end a rude iron hook, and, taking one of them, Canaris threw it over the wall, retaining the other end in his hand.
He pulled it in a yard or two, and then the rope became suddenly taut.
The hook was secure. He took a sharp glance around him, measured with his ear the hoarse shouts that still rose from the slave market, and then went nimbly up the rope, hand over hand. He reached the top in safety.
"Now fasten the stuff on," he whispered down; "put the other ropes in the bag."
Guy obeyed instructions, and Canaris rapidly drew the string up. He then speedily hooked a second rope to the wall and dropped it down.
"Fasten Forbes to one rope, and come up the other yourself," he called out to Chutney.
Here a difficulty arose. Melton was, of course, unable to climb the rope, and if a noose were slipped under his arms the wound would be torn and lacerated by the strain.
"It's no use, Chutney," he said. "I foresaw this. You must get off without me."
Guy was in despair. He was just on the point of bidding Canaris make his escape alone, when a happy thought struck him.
"I have it, Melton," he cried joyfully. "Have you much power in your arms?"
"Yes," said Melton, "but not enough to go up that rope."
"That's all right. I don't want you to go up the rope," returned Guy.
"Here, put your feet together and stand straight."
Hastily noosing the rope, he drew the knot tightly about Melton's legs just above the knee.
"You take a good grip with your hands," he added. "There won't be much strain on your wound and we'll have you on the top in a jiffy."
Melton obeyed instructions, and Guy pulled himself speedily to the top.