Residential ramparts ran along both sides of the aqueduct waterway, sunlight still touching their uppermost stories. The water ran slowly between two high fences, contained in its hardstone channel.

A boy sat on a bench at the base of the channel wall. He’d seen people on his way here, but now the area was empty. A beetle droned past, which meant that someone might have fruit trees on the rooftops. He scanned around for public access stairways, but couldn’t see any on this side. That didn’t rule out the possibility.

He gazed at the upper rooftops, taking in the last of the light. A sunstrip gleamed bronze, transporting the sunlight into subterranean depths. He withdrew half a sandwich from his schoolboy’s pack. It was gone in short order and he stretched, shouldering his bag again. He felt almost full.

Looking up and down the channel, he turned away from the sunset toward an alley leading out from the aqueduct. Before he could find a stair to the rooftop, or someone who knew where one was, there came a causeway leading into the bedrock. Down it he went.

The temperature dropped, hardstone giving way to natural hewn stone walls. There were more people in the belowstreets here, where the sunstrips spread their illumination through branching networks around doorways and windows. More and more people were ending their workdays, crossing between levels above and below.

He scanned the crowd as he walked, noticing a couple boys leaning against the wall of an alcove. They were older, both wearing dark jumpsuits covered in pockets. The moment he met the eyes of the one at the corner, they grinned wolfishly.

“Where you going in such a hurry?” said the boy who’d met his eye. Tattoos peeked out from both sides of his collar.

“Nowhere,” said the boy, getting out the main walkway. A few Aquarii passed behind him, mantislike legs clicking against the stone, head-tendrils waving.

“So, take a load off.” They sized him up, from his bag where he set it on the ground, to his clothes which were none too fresh. They were just playing, and he played back. The three of them narrated stories about passersby until a girl stopped in to visit.

She had an Aquari projection orb. They sat on the ground and passed it around. She was adept with it, intricate and luminous colorscapes rising from the orb in her hands. A few stopped to watch. She held it out to the boy in a scene of turquoise and silver filigree. When his fingers touched it, a series of orange polygons bounced and tumbled through, colliding with each other and exploding in puffs. They broke into laughter.

“Do you all want to come to the Valley?” she said playfully. The two in jumpsuits smiled, and seeing them, the boy nodded as well. She rose, brushing dust off her rag-stitched skirt and placing the orb in a belt pouch. Without another word, they followed her lead.

After following for miles of alleys and innumerable corners, ladders, and staircases, he found himself tagging along, ready to locate his whereabouts should he need to. This might have troubled him, but he decided the only way they might actually get there was if he stopped worrying about it. He was having a good time along the way.

The four of them occasionally emerged onto the surface, popping up in different neighborhoods. He lost count of the new faces he’d met at the houses and porches where they stopped to talk. Their smiles grew wide. Finally, they went through a door that looked like any other door, and he realized they’d arrived.

In a mudroom decorated with lights and branches they took off their shoes, adding them to the small mountain of footwear. Stepping in from there, he felt his soles touch soil and grass. Astonished, he looked up straight into the night sky. This was a courtyard, an orchard brimming with gardens, all lit by lamps and lights hanging from the trees. Heads turned to see them enter, and the four of them raised their hands in greeting.