Iron spread across the shattered corridor floor like liquid obeying invisible hands.
It rose smoothly, reshaping itself into a rectangular table polished to a muted sheen.
Two chairs formed opposite one another, their legs rooting into the fractured concrete as if anchoring the space to something older than the Arcology itself.
Tubal Cain gestured politely.
"Please."
Cagaro approached, pulse controlled but elevated enough to shake hands. Unlike other combats had noise to hide behind. This had silence.
He sat.
Tubal Cain lowered himself into the opposite chair with measured grace.
The surrounding debris settled unnaturally, forming a perimeter. Henry, Arcee, and Blyke remained outside the iron boundary, close enough to hear, far enough to avoid interference.
Tubal Cain folded his hands on the table.
"This" he began, voice calm and resonant, "is a game of informational leverage. We are not gamblers of money. We are gamblers of certainty."
His eyes met Cagaro's directly.
"The objective is simple. Force your opponent into contradiction debt. The first to accumulate three Debt Points loses."
The air felt heavier already.
"Before the game begins, each player privately selects two elements. One Secret Number between one and twenty. And one Secret Role."
His tone shifted slightly, like a professor defining axioms.
"Role One: Oracle. The Oracle may lie only once during the entire match.
Role Two: Demon. The Demon must lie at least once and might lie up to three times.
Role Three: Judge. The Judge cannot lie at all."
He continued evenly.
"These selections are declared only to a neutral referee and remain hidden from the opponent."
Cagaro nodded slowly.
"Each round consists of two phases." Tubal Cain explained.
"Phase One, Inquiry. One player asks one yes-or-no question about the opponent's number, their role or their past answers. However, the questioner cannot directly ask for the number itself."
He offered examples calmly.
"You may ask, 'Is your number above ten?' or 'Have you lied yet?' Answers must be immediate. Yes or no."
"Double-layer questions are permitted. Meta-logic is permitted. For example: 'If I asked whether your number is even, would you say yes?'"
His fingers tapped the iron surface once.
"After three total questions exchanged, Phase Two begins. Either player may declare 'Contradiction' and explain logically why the opponent's answers are impossible following their roles. In simple way, they have broke the law of their role.
If the accusation is correct, the opponent gains one Debt Point. If incorrect, the accuser gains one."
He leaned back slightly.
"Certain violations incur automatic penalties. A Judge who lies receives two Debt Points. A Demon who never lies gains one. An Oracle who lies twice gains one."
Henry watched the iron table with visible restraint. His hands rested at his sides but the tension in his shoulders had not left. "He switched battlefields."
He murmured quietly. "He was losing tempo control. It is his chance to prove himself."
Arcee's eyes remained on Cagaro. "Not necessarily. Our opponent has ton of advantages still."
Blyke exhaled slowly. "He thrives in layered logic. Cagaro has to avoid playing reactively. The moment he chases answers, he loses the position."
Henry's jaw tightened. "This is not about numbers. It is about identity pressure. Yes, it is."
Across the table, Tubal Cain produced two thin sheets of iron that softened into parchment-like texture under his fingers. Cagaro pulled a small notepad from his gear. For a moment, the contrast felt almost absurd.
Both men wrote without making a sound.
One secret number.
One secret role.
Cagaro's pen paused once, then continued. He folded the paper carefully, pressing the crease flat with deliberate control.
Tubal Cain folded his metallic sheet with surgical precision, the material thinning as it compacted. He extended it toward Arcee.
Cagaro followed.
Arcee stepped forward, accepting both folded slips without comment. She did not open them. She simply held them with neutral expression.
Tubal Cain leaned back slightly and smiled faintly.
"You are fortunate, lad." he said conversationally. "In my time, paper was not so easily obtained."
Henry did not respond.
Tubal continued, voice light but edged with memory. "We would inscribe agreements upon packed earth. Then we would press a stone over the writing to prevent alteration. Or carve them into leather or leaves."
The misted corridor felt quieter than before.
Henry stepped closer to Blyke and Arcee.
"Once this begins," he said under his breath, "there is no physical interruption. If Cagaro folds under pressure, we cannot rescue him with force."
Arcee nodded slightly. Cagaro straightened in his chair.
Tubal Cain rested his fingers lightly against its surface, eyes steady, ancient patience radiating from him like heat from forged steel.
"Who takes the first blade?" he asked calmly.
Cagaro swallowed once. His pulse drummed in his ears but his voice came out level.
"I will."
Henry did not interrupt. He only watched.
The first strike in a logic duel was never about damage. It was about deception and manipulation.
Cagaro leaned forward slightly.
"Is your number below 10?"
A simple partition of probability. A clean divide, ten numbers on one side. Ten on the other.
Tubal did not blink.
"No."
The word landed flat and quick
But beneath the answer lay a labyrinth.
Oracle could lie once.
Demon must lie at least once.
Judge could never lie.
If Tubal was Judge, the number was 10 or higher.
If Oracle, that "No" might already be the single fracture.
If Demon, the lie could have just been planted.
Information gained, ambiguous.
Pressure gained, minimal, but the board had shifted.
Tubal inhaled quietly.
"Is your number in the range of 11 to 20?"
The counter-partition came in surgical way.
Cagaro's mind flashed through possibilities. If he answered truthfully and was Judge, he locked himself into a numeric quadrant. If he lied prematurely as Oracle, he burned capital.
If Demon, he had to lie at least once before the end.
There was no safe square.
"No."
If true, his number was 1–10.
If false, it was 11–20. Two "No" answers.
And yet, somewhere inside those denials, a crack already existed. The first round's tension settled like invisible chains around both men.
Three questions would decide whether suspicion could crystallize into accusation.
The second inquiry phase tightened like a wire pulled to its limit.
Cagaro did not hesitate this time.
"Is your role Judge?"
A direct probe into structural integrity. If Tubal said yes and was lying, the debt risk was catastrophic. Judge lying meant immediate structural collapse later.
Tubal's eyes held steady.
"Yes."
If true, every prior and future answer must align perfectly. If false, he had just placed a loaded blade at his own throat. Was it arrogance? Or calculated bait?
Oracle could lie once. Demon must lie at least once. Judge could never lie.
If Tubal truly was Judge, then his number was not below ten. That meant ten to twenty. But Cagaro's mind resisted certainty. A single misdirection early could corrupt the entire lattice.
Tubal leaned forward slightly.
"Have you lied in your previous answers?"
The question pressed directly against Cagaro's integrity.
"No."
If Cagaro was Judge, that locked consistency. If Oracle, he had not used his lie yet. If Demon, the required deception still hovered somewhere in the future.
Tubal's gaze sharpened now with a smirk.
Most likely scenario, Cagaro's number was below eleven. But probability was not proof.
"Is your number divisible by three?"
Tubal responded, "No."
Tubal mirrored it instantly.
"Is your number divisible by three?"
Cagaro answered, "No."
Somewhere in the overlapping grids of ten-to-twenty and divisibility by three, patterns were narrowing.