Though he was impatient to get through the day’s ritual, it would do no good to spur the horse. At this hour, still chilled by the night, the harpta could move only slowly, their dual dorsal fins folded together, the intaglio tracery of blood vessels sunken within the fin-flesh. When the sun was a bit higher, the fins would separate slightly, allowing the sun to touch both sides, the veins would fill with blood to be warmed by the sun and to carry that warmth deep into the huge bodies of the beasts. Later, when it grew hot, the blood would be diverted from the fins into the moist belly-fringes of the beast, and the fins themselves would be lowered on either side to provide shade for the huge bodies beneath— and for the persons who walked there—while the long rows of evaporating belly-fringe conducted heat away from the bodies, keeping the creatures from overheating.
The first red flag was set just outside the city gate of Mahahm-qum, the next one gleamed along the edge of a dune. As they reached these, others would be seen, marking the way.
An hour’s slow ride from flag to flag brought them to the first patch of holy growth. The Shah raised his hand for a halt, turned and rode silently back along the line. The masters had arranged themselves between couples of candidates, and the Shah pointed randomly at two of the heavily veiled candidate-master trios. Each candidate couple knelt to receive a silent blessing from the Shah before each ritual master guided his candidates to the vegetation and demonstrated how the holy growth was to be sheared off close to the ground, how every scrap of it was to be placed in the baskets.
With four candidates working, it did not take long. When all had been cut, the ritual masters took the curved knives from the candidates, emptied the baskets in the panniers carried by the last harpta in line, and returned to the candidates for the completion of the ritual. The procession did not wait for the ritual to end, which would take some time. Those involved would return to the city on their own when they had finished. As soon as the last basket was emptied, therefore, the Shah commanded the procession to move forward.
The trek went on all day. In early evening, having made a wide, circular loop through the desert, the Shah led the caravan back toward Mahahm-qum. Most of the harpta had already returned to their half-shore, half-sea pen on the coast, those remaining held their fins erect to gather the last of the sun. Outside the city, the herdsmen removed the harnesses and let the harpta go, all but the one who carried the panniers. This one was guided toward a long, low mud-brick building that emerged from the sands on the outskirts of the city. Seeing the beast approach, guards unlocked and swung wide the doors before removing the panniers and harness from the lizard. It went scuttling off after its fellows, sand splaying from beneath its feet.
The Shah and Ybon Saelan stood for a moment outside, scrutinizing the building with great care. At either side of the front wall, hinged wooden extensions held back the sand. At the front roof-line was another, propped high, the props held by a single mechanism. If the side flanges were pulled in and the upper one was dropped, the wind-piled sand behind all three of them would flow down in an instant, covering the building. It had been designed so, in the event of … anything untoward occurring.
“When was it tested last?” asked the Shah.
“Last Holy Days,” replied Ybon Saelan. “It worked perfectly. It took two days to dig it out. The men inside were running out of air.”
They went inside, shutting the doors behind them. The panniers had been emptied onto a smooth table, the originally voluminous cargo dried by the day’s heat and dry air into a modest pile of dark scraps. A stone roller plied by the guards was reducing the scraps to a fine, reddish powder which was sifted and crushed again, then scooped and brushed with meticulous care into small glazed jars that were sealed tightly before stacking them against the wall amid others.