48: Thirty-One Books

Over the next six days, Su Yan read the thirty-one books in the cellar.

He read them in inside-time. He carried each book down the small careful unhurried staircase into the cellar, sat on the small low cushion he set up at the foot of the bookshelf, and entered the Mirror through the cellar's *secondary* lattice — which he had discovered, by the careful unhurried courtesy of the cellar's substrate, on the morning of the second day. The cellar had its own small careful unhurried connection to the foundation platform. His mother had built it that way.

Inside, six outside hours became sixty.

The thirty-one books — by the careful unhurried calibration of his mother's library — were a *curriculum*.

The first three were cultivation theory. They explained the three pillars — body, qi, soul — in the careful unhurried small private vocabulary of the substrate-cultivators his mother had come from. They mapped the kingdom of Beicang's standard cultivation taxonomy onto the deeper substrate-cultivation taxonomy his mother's people kept, with careful unhurried cross-references. They were, by Sebastian Yan's careful read, *the cleanest pedagogical work he had ever encountered* in either of his lives.

The next four were alchemy. They were structured, by the careful unhurried calibration of his mother, *for him* — that is, for a substrate-cultivator with the full Aleph schema running, who was reading the kingdom of Beicang's standard alchemy manuals and needed to know which of the kingdom's small careful unhurried recipes were *correct on the surface and incomplete underneath*. The books explained, in the careful unhurried small private notation of his mother's hand, how to *complete* the recipes — by substitutions, by adjusted firing temperatures, by careful unhurried changes in the order of ingredient-addition that no Beicang alchemist had ever, in two centuries, recorded. The books would, by the careful unhurried calibration of any working alchemist, save him perhaps *fifteen years* of small careful unhurried trial-and-error.

The next two were formations. He set them aside for later study.

The next three were soul cultivation — including, on the third book, the careful unhurried pedagogy his mother had calibrated for him on the *second pillar's* full opening, which would, by the careful unhurried calibration of his bookkeeping, become operational at Sovereign Origin Stage One.

The next five were history. They covered, in the careful unhurried small private vocabulary of his mother's people, the history of the *previous Aeons* — at least the eleven for whom records survived. The records were short. Each Aeon had served, by the careful unhurried calibration of the title, perhaps a hundred to four hundred years. Each had, in her time, conducted some small careful unhurried piece of work that the title had, by its own bookkeeping, calibrated as her *responsibility*. Each had — by the careful unhurried small private bookkeeping of the histories — *eventually been killed by something the Cage had calibrated against her*.

His mother's predecessor — *the* Aeon, the will-fragment in the Mirror — was, by the histories' fifth book's careful unhurried entries, *the most recent killed*. Her death had occurred approximately *thirty thousand years ago*, in the small careful unhurried careful event the histories called *the Aeon Rebellion*. Her records were extensive. She had, by the careful unhurried calibration of her time, attempted *something larger than any of her predecessors had attempted*. She had, by the careful unhurried calibration of her time, *failed*. The histories' fifth book had a single careful unhurried marginal note in his mother's hand at the bottom of the entry: *She tried alone. Do not.*

Su Yan read the marginal note three times.

He filed it.

The next three books were geography. They covered, in the careful unhurried small private vocabulary of his mother's people, the layout of the *known* worlds — *the kingdom of Beicang and its surrounding kingdoms*; *the eastern continent's central plain and its great sects*; *the Lower Immortal Realm above*; *the Mid Immortal Realm above that*; *the Upper Immortal Realm at the cosmos's middle*; and — at the end of the third geography book, in a small careful unhurried marginal note — *the existence of three further realms his mother's people had names for and had not, in their preceding careful unhurried bookkeeping, fully visited*.

The next four books were biology. They were — by Sebastian Yan's careful read — *the most useful four books of the thirty-one*. They mapped, in the careful unhurried small private notation of his mother's hand, the substrate-biology of every species the kingdom of Beicang's careful unhurried botany had filed and a great many it had not. They explained, in the small careful unhurried way only a substrate-cultivator who had been Sebastian Yan in another life would fully appreciate, *how the schema of a body interacted with the substrate of the place that body lived in*. They were — by his careful read — *the missing piece* of the small careful unhurried foundation diagrams the Mirror's tablets had been teaching him for four months.

The last seven books were *substrate calibration*.

They were — by his careful unhurried read — *operating manuals*. They taught the careful unhurried discipline of *how to read a substrate at distance*, *how to calibrate one's own substrate to interact with another's*, *how to extract substrate from an unwilling source* (which his mother had marked, in two separate careful unhurried marginal notes, as *forbidden — used only in the unkind craft of the Hollow Veil*), *how to seal substrate against unwanted reading*, *how to mark substrate to be readable across distance*, *how to read the small careful unhurried substrate of a place across distances of many li*, and — in the seventh book, which his mother had marked with a small careful unhurried marginal note saying *open last* — *how to construct the small careful unhurried substrate-anchors that would permit a substrate-cultivator to* — and Sebastian Yan, by the careful unhurried read of the seventh book, registered with the calm unhurried steadiness of a young man who had, in his other life, been a substrate-engineer for six years — *travel between substrate-locations by anchor-pair, without crossing the physical distance between them*.

The seventh book was — in his careful unhurried bookkeeping — *the manual for a kind of teleportation*.

It was the manual that would, by the careful unhurried calibration of his mother's preceding work, *let him reach the eastern continent's central facility in a single careful unhurried step*, on the day he was, by his own substrate's calibration, ready.

He set the seventh book down on the cellar's small low table, very carefully, on the morning of the sixth day, after he had finished its first reading.

He inclined his head, in the cellar's lantern-light, at the small portrait of *Aeon-of-the-Verdant-Year, age twenty-two* on the western wall.

"Mother," he said, in his ordinary voice, in the small clean cellar-air. "You have, by your careful unhurried preceding work, given me everything I will need. I will, by my own careful unhurried preference, *use* it."

The portrait, in the lantern-light, did not move.

But the small careful unhurried *substrate-trace* of his mother's hand — which the careful unhurried discipline of her substrate had, by the careful unhurried calibration of the cellar's preceding seal, embedded in the calligraphy — *registered* his sentence in the substrate-sight, *received* it, and — for the count of one breath — *settled*, in the small careful unhurried courtesy of an old letter that had finally, after nine years, *been received by its addressee*.

In his chest, the ember pulsed — slow, considered, *gentle* — and the dry voice, very quietly, said: *She would, by the small careful unhurried courtesy of her preceding bookkeeping, hear you.*

Su Yan inclined his head.

He gathered the seven books of substrate calibration into the small lacquered traveling-case.

He climbed the small careful unhurried staircase back to the writing room.

The panel, by the careful unhurried courtesy of the seal, closed behind him.

He laid the seven books, with the others, in the false bottom of the writing table.

He locked it.

The morning of the sixth day after the cellar's opening had — by the careful unhurried courtesy of one mother's preceding work — *given* the next twenty-three months and twenty days a *complete curriculum*.

The careful unhurried bookkeeping of his preparation had, by the small careful unhurried calibration of the morning, *all of its books*.