The following morning, Sam and Remi led the way to the last village. They took the smaller side trail that the mayor had told them led to their final stop and soon they were getting too far ahead of the others. They waited until the others could see them and then went on. But, before long, they were much farther ahead again.

Sam and Remi reached a slope that had suffered an avalanche during the night and covered a stretch of the trail with dirt and rocks that looked like basalt. They made a detour above it, carefully navigating around the big boulders that had fallen. Then they both stopped.

One of the enormous chunks of basalt that lay in the path was not natural. It was a perfect rectangle with rounded corners at the top. Without speaking, they both stepped closer. They could see the carved profile of a man with the hooked nose and elongated skull of a Mayan aristocrat and an elaborate feathered headdress. There were columns of complex symbols that they could tell were Mayan writing. They both looked up the side of the mountain, their eyes following the gash in the green foliage upward, tracing the path of the avalanche to its beginning.

Irresistible attraction made them begin to climb at once. They went up the steep hillside to a surface that was perfectly flat like a shelf, about thirty feet long and twenty feet wide. The space was bordered by trees, but there were none within the ring. They could see that a portion of the shelf had broken off and gone down in the avalanche.

Sam dug down a few inches with his knife, and they both heard the blade strike stone and scrape when he moved it.

Remi looked around her. “A patio?” she said. “Or an entryway?”

They looked at the sheer face of the mountain. There was one area that had a layer of new dirt on it, which had fallen from higher up on the mountain, and a bit of a recessed spot. “This looks like it might have slid down when the big block fell,” Sam said. He poked it with his knife, then set down his pack and took out his folding shovel. He used it overhand, scraping down more of the dirt from the rocky wall.

“Careful,” Remi said. “We don’t want to bring down the rest of the mountain.” But she took off her backpack, took out a hatchet they’d used for splitting firewood, and joined him. When the dirt was cleared, they faced a wall of black volcanic rock. Sam stabbed at it with his shovel a few times. It was brittle and porous like pumice and chipped off in chunks. He nodded at Remi’s hatchet. “May I?”

“Be my guest.” She handed him the hatchet.