Tartarus arrived the way places that are felt before they are seen arrive. Not visually, not with any particular atmospheric change, but with a shift in the quality of the air. A heaviness that was not quite gravity and not quite pressure but was both, a quality of weight that was not the weight of stone but the weight of time, of accumulated consequence, of everything that had been placed here because nowhere else would hold it.
He felt it before they reached the entrance. The Boy went very still. The Boy recognized, at a level that predated language, that it was in proximity to something ancient in a way that the palace and the island and the sky had not been ancient. Those things were old. This was something else.
The entrance was not what he had imagined from the fragments he had assembled through years of overheard descriptions. He had imagined something that announced itself — a gate, a threshold, something with the visual weight of a significant place. What he found was more like a wound in the earth: an opening in rock that had the age of the world in it, stone that had been here before the palace, before the island, before most of the things that existed on the surface above.
Hercules led him down.
The descent took a long time. The path went deeper than anything he had acoustically mapped — deeper than the palace foundation, deeper than the underground spring, deeper than the silence below the spring that he had sometimes felt through the floor and attributed to the geological fact of the earth. This was deeper than geological fact. This was something else's depth.
The torches in the walls of the descent path changed as they went — the light becoming a different color at the edges, the shadows more specific, more deliberate, as though the darkness here had its own opinions about where it would and would not go. The air acquired the particular quality of air that has not touched open sky in a very long time: not stale exactly, but complete, self-contained, not participating in any of the atmospheric exchange that surface air takes for granted.
He tracked the acoustics of the path as they descended. The sound changed in ways that told him about the space: wider chambers gave way to narrower passages and back to wider chambers, the reverb shifting, the specific frequencies that the stone absorbed and reflected telling him the shape of what he could not see. He was building the map as they went, adding this new space to everything he already knew the way you add a new room to a house you thought was finished.
He could hear Tartarus before he could see it.
It was loud in ways the room had never been — the screaming of the condemned was the loudest layer, present and constant and unlike any screaming he had heard on Themyscira during training. That screaming had purpose and limit. This screaming had neither. Under it, a grinding — stone mechanisms working, massive, the sound of something designed to contain rather than create, operating continuously for millennia. Under that, the subsonic pulse of something impossibly deep below even this place, the heartbeat of something he could not name.
Under all of it, in the largest cavern: one specific silence.
One source of quiet that was shaped differently from the rest — not the absence of sound but the presence of something that had been quiet for so long that its quiet had become a presence in itself. Something enormous and still, against the far wall.
He found the pillar before Hercules indicated it.
Hercules worked quickly. He secured the chain to the anchor point in the pillar with practiced efficiency and checked the range of movement before stepping back.
"The chain is long enough to let you move," he said. "To sit, stand, lie down. It is not—"
"I know what it is," the boy said.
A silence.
"I'm going to say something," Hercules said, in the tone of someone who has decided to say something and does not know how it will land and has decided to say it anyway. "And I need you to hear it as something true and not as something I am saying to make myself feel better."
"Say it."
"You are going to get out of here," Hercules said. "I don't know when. I don't know how. But I have met the things that are kept here, and I have met you, and I know the difference." A pause. "I don't know if that helps. But it is true."
The Boy heard this and went somewhere complicated with it.
The cold part noted it and moved on. This was not a plan. But it was the first piece of information about this place that came from a source outside himself.
"Thank you," the boy said.
Hercules left.
The footsteps receded up the long path. He stood at the end of his chain and listened to them go, tracking the sound all the way to the point where the acoustics of the descent path curved and the sound was no longer directly available to him.
Then he turned toward the specific silence on the far wall.
Something enormous was watching him.
He looked in its direction.
He began to build the map of Tartarus.
* * *
He did not approach the far wall on the first day.
The first day was for mapping. The same process he had applied to the room, now applied to a space orders of magnitude larger. He spent the day in methodical stillness: standing, sitting, pressing his hands to the floor, pressing his ear to the pillar he was chained to, building the layout from sound the way he had built the layout of the palace above the room.
The cavern he was in — its dimensions, the positions of other anchor points, the acoustic locations of other presences — he could map completely by the end of the first day. Not all of Tartarus, Tartarus was endless. But the immediate space.
The thing against the far wall was the most significant acoustic fact in that space. Not the loudest — the screaming from other chambers was louder by any measure. But the most significant, in the way that silence can be significant when it comes from somewhere that should not be silent. It was directed silence. A silence that contained attention rather than absence.
He had spent seventeen years learning to tell the difference.
* * *
On the second day, he ate the food that had appeared — he had not heard anyone approach, which was either a failure of his attention or a property of this place he would need to account for — and waited.
The thing spoke on the third day.
"You're Hippolyta's."
Not a question.
He said nothing.
"You have Zeus's eyes. I can see them from here."
"It's dark," he said.
"For you," the voice said.
He considered this. The darkness was not, apparently, a shared condition.
"You've been measuring this space since you arrived," the voice continued. With something that might, in a different context, have been appreciation. "You're very thorough."
"I've had practice."
"I know." A pause. "I've been watching you since they brought you in. The chain I recognized immediately. Hephaestus's work — he marks his best pieces in a way that only someone who knows what to look for will find."
The boy waited, listening not to the content but to the mode of it — the casual authority, the ancient's habit of narrating observation rather than concealing it, the specific quality of something that had been in one place for so long that concealment no longer seemed interesting.
"Who are you," he asked.
"Your grandfather," the voice said. "On your father's side."
He sat with this.
He had fragments of mythology from years of overheard fragments — the gods, the old wars, the names that the Amazons used when they spoke of Olympus. He had a grandfather on his father's side. He had heard the name once, maybe twice, in passing references that had not seemed important at the time.
"Cronus," he said, testing it.
"Yes."
"Zeus's father."
"Yes. Which makes me Zeus's father and your grandfather, which is the kind of relationship that sounds clean until you know the history." A pause that was not uncomfortable — the pause of something that has had centuries to make peace with the history. "I know what it costs to be the person they are afraid of before the person has done anything to justify the fear. I have been that person for a very long time."
The boy looked in the direction of the voice.
"What do you want?" he asked.
"Right now? Company. It has been a very long time since anyone down here was capable of conversation worth having." The longer answer came after a pause. "And in the larger sense — I want what you want. I want to see what the world looks like when the people who put us here are no longer in a position to put anyone anywhere."
The Boy: he could be useful.
The cold part: he could be useful. He could also be manipulating you. Both can be true. Find out which.
"Tell me about the world," the boy said.
Cronus made a sound that was the shape of a laugh without the warmth.
"That," he said, "will take some time."
"I have time," the boy said.
"Yes," Cronus said. "Nothing but time. So do I. Let's use it well."