Sandstorm

8:18 P.M.

SHOW MEon the map,” Cassandra said.

The curator knelt on the floor of the tomb. She had spread out the same map as before. A straight blue line led from the first tomb on the coast to this one in the mountains. Now a second line, this one in red, branched away, heading northeast, crossing out of the mountains and into a great blank expanse of the desert, the Rub‘ al-Khali, the vast Empty Quarter of Arabia.

Safia shook her head, running a finger along the line out into the sands. “It makes no sense. It could be anywhere.”

Cassandra stared down at the map for several breaths. They were looking for a lost city in the desert. It had to be somewhere along that line, but where? The line crossed through the center of the vast expanse. It could be anywhere.

“We’re still missing something,” Safia said, leaning back on her heels. She rubbed her temples.

Kane’s radio buzzed, interrupting them. He spoke into his throat mike. “How many?” A long pause. “Okay, just keep a bloody close eye on them. Keep them away. Let me know if anything changes.”

Cassandra eyed him as he finished.

He shrugged. “Those sand rats we saw on the side of the road have returned. They’re setting up camp where we spotted them earlier.”

Cassandra noted the concern in Safia’s face. The woman feared for her countrymen’s safety. Good. “Order your men to shoot anyone who gets close.”

Safia tensed at her words.

Cassandra pointed to the map. “The sooner we solve this mystery, the sooner we’re out of here.” That should light a fire under the curator.

Safia stared sullenly at the map. “There must be some distance marker built into the artifact. Something we missed. A way to determine how far down this red line we must travel.”

Safia closed her eyes, rocking a bit. Then she suddenly stopped.

“What?” Cassandra asked.

“The spear,” she said, glancing to the door. “I noticed striations along its shaft, marks scored into it. I thought them merely decoration. But back in the ancient past, measurements were often recorded as notches on a stick.”

“So you think the number of marks could signify a distance?”

Safia nodded and began to stand. “I have to count them.”

Cassandra distrusted the woman. It would be easy to lie and lead them astray. She needed accuracy. “Kane, go out and count the number of marks.”

He grimaced but obeyed, slapping on his sodden ball cap.

After he left, Cassandra crouched by the map. “This has to be the final location. First the coast, then the mountain, now the desert.”

Safia shrugged. “You’re probably right. The number three is significant to ancient faiths. Whether it’s the trinity of the Christian God-the Father, the Son, and the Holy Spirit-or the ancient celestial trinity: the moon, the sun, and the morning star.”

Kane appeared in the doorway, shaking rain from his cap. “Sixty-nine.”

“Are you sure?”

He scowled at her. “Yes, I’m bloody damned sure.”

“Sixty-nine,” Safia said. “That has to be right.”

“Why?” Cassandra asked, turning her attention back to the curator as she bent over the map.

“Six and nine,” Safia explained to the map. “Multiples of three. Just like we were talking about. Sequential, too. A very magical number.”

“And here I always thought ‘sixty-nine’ meant something else,” Kane said.

Seemingly deaf to the man, Safia continued to work, measuring with a protractor and tapping a calculator. Cassandra watched over her.

“This is sixty-nine miles along the red line.” Safia circled the spot. “It ends up here in the desert.”

Cassandra knelt down, took the protractor, and rechecked her measurements. She stared at the red circle, noting the longitude and latitude in her head. “So this may be the location of the lost city?”

Safia nodded. She continued to stare at the map. “As best I can tell.”

Cassandra’s brow crinkled, sensing the woman was keeping something from her. She could almost see the woman calculating something in her head.

She grabbed Safia’s wrist. “What are you holding back-”

A shot rang out nearby, clipping away any further words.

It could be a misfire. It could be one of the bedouin shooting off his rifle. But Cassandra knew better. She swung around. “Painter…”