After descending from the rock wall the captain started a fire in a nest of dry grass, then transferred the smoldering blaze to a bundle of brush. Holding the torch high, he led the way through the opening. The Scythians had hitched themselves to the harnesses and proceeded to pull the cart through a smooth-walled tunnel, which extended for about fifty feet before it opened up into a chamber.

The captain lit several oil lamps set into sconces along the wall of the chamber. The blazing ring of light revealed a large circular gallery, with tunnels leading off from it. In the center of the room was a circular section of rock about three feet high and six feet in diameter. The captain directed the Scythians to raise the crate to the dais. At his order, they removed the lid and stepped back.

The captain leaned into the crate and lifted the cover on a slightly smaller, more-ornate chest of gold and dark wood. As he peeled away layers of blue cloth, his heart hammered against his rib cage. He stared, transfixed; his face glowed in the reflection coming from the box. After a moment, the captain carefully rearranged the blue cloth and cover. Tarsa’s men replaced the lid.

“Our mission here is done,” he said, his words echoing in the chamber.

He led the way outside. The clean, cool air felt good against his sweaty face and cleansed the dust from his lungs. The captain directed the Scythians to lift the stone slab back in place. He studied the wall. No one would suspect that the slab hid the opening.

The column set off the way it had come. The procession moved at a brisk pace, without the weight burdening the cart, and marched directly to the river. Built along the sloping shore of the river was a wooden building whose large doors faced the water. The captain inspected the interior of the building. When he emerged, he seemed pleased. He told Tarsa and his men to prepare a fine meal and get a good night’s sleep.

At dawn, the tireless captain awoke them. The horses dragged a wooden boat from the storehouse and down to the river. The open-decked craft was half boat, half raft, around fifty feet long and a dozen or so feet wide, and drew only a few feet of water. A long tiller operated the rudder.

The horses were led onto the boat, and it was pushed and poled into the river to catch the currents. The ride downriver was more hair-raising than their sea voyage. The boat encountered shallows, rapids, drifting trees, whirlpools, and rocks. The Scythians cheered when the boat popped out of the mouth of the river and they saw the ship at its mooring.