The atmosphere became very damp and rank, all sound from above had died away, and for a while, at least, George thought they were safe. At the bottom they came to an earthen passage; along this they ran, the light from his guide's torch steering them through the many obstacles this apparently ancient and decayed passage presented. It was a weird flight, the ruddy glow on the broken and uneven walls and roof made the place very ghostly, while the flapping, whirring little bats shooting past their heads, often flying blindly into their faces, gave George a creepy sensation that was anything but pleasant.

At last they came to the end of the passage, and another flight of stone steps presented itself; this time they had to ascend. Half-way up they came to a solid stone wall, the sight of which filled George with dismay, but the guide, with perfectly assured action, stooped and in a moment touched a spring, and the solid mass revolved on a pivot, disclosing more steps. They passed through the opening, and the stone swung back into its original position as they hurried up the steps.

"We are quite safe from pursuit now," said the guide. "They cannot move that stone; only three persons know its secret—Naoum, Mariam, and I. We have nothing to fear until we reach the open air."

"When will that be?" asked Helmar, glad to think that they would at last leave this underground passage.

"At the top of these steps," replied the guide. "Then we shall have to reach a postern in the wall of the grounds. That is our greatest danger."

A few moments later they reached the end of the steps. A small wooden trap formed the outlet to this place. The guide raised it and looked out, then cautiously pushed his way up through it, and assisted Helmar to do the same; the trap was then replaced. As soon as he reached the open air George turned to see what outward sign of its presence the trap gave, and was surprised to see none. It was covered with a thin layer of soil, and, when replaced in its setting, a few scrapings of his guide's foot sufficed to obliterate all traces of it.

The place in which they now found themselves was the centre of a thick shrubbery, and before leaving it the guide went to reconnoitre. Presently he came back, having satisfied himself that the coast was clear.

"There is no sign of the guards," he explained, "but they cannot, I know, be far off. Come, we must run for it. There is no doubt that where they are, Naoum's men will be watching to help us."

Emerging from the thicket, the guide, followed by George, dashed across the open gardens towards another cluster of bushes. The night was one of supreme loveliness, the moon was up, and, though only in its first quarter, shone brilliantly. This was one of the dangers of their journey, but, even so, it assisted them as well, for if it was likely to betray the fugitives, it would also warn them of the approach of the enemy.

As they ran across the open, George could see the palace some distance off. The whole place was lit up, and the flashing lights warned him that his escape had brought about this activity so late at night.