The Solum Impervium is the order of high priests that actually governs Avalon. The Grand Imperial Ecclesiarch reads the nation's futures and pronounces them, but he pronounces them from inside a sphere of arrested time, a sentence stretched across days, a judgment that may not reach its last word before a season has turned. A country cannot wait that long for the end of a sentence. So the order stands at the foot of the throne and catches the words as they form. It decides what they meant. A harvest that will not keep, a border incident, a marriage, a child's Declaration: each is settled by a priest of the Solum Impervium reading the Ecclesiarch's fragments and ruling on how they apply to a thing that is happening now. The order will tell you it only interprets Maurolin's sight. That is true. Interpretation is also the whole of its power.
The gate
The order is quartered in the innermost ring of Tarolin, which puts it between the throne and everyone who wants something from it. Nothing reaches Maurolin except through the Solum Impervium, and almost nothing does. A petitioner who wants a verdict does not get the Ecclesiarch; he gets a high priest who consults the Ecclesiarch's standing pronouncements and tells him what they require. The order decides who may move inward from ring to ring, and it decides it by reading the same fragments it reads for everything else. A pilgrim can spend years earning clearance to the second ring and die without ever being told why the third stays shut to him.
This is the arrangement the Solum Impervium prefers, and it has reason to. A ruler who takes three days to finish a sentence cannot run a country, which means the people who finish his sentences run it instead. The order does not say this aloud. It does not have to. Every day Maurolin spends frozen mid-gesture on the dais is a day the Solum Impervium governs in his name, and the order has governed in his name for as long as anyone in Tarolin has been alive.
An interpretation chamber off the inner ring, where three priests of the order sit through the eighteenth hour of a single pronouncement. The Ecclesiarch's words arrive as runners bring them, one phrase at a time, copied from the throne and carried inward. On the long table the phrases are laid out in the order they came, weighted down with river stones, and the priests move them and re-read them like a sentence that has not yet decided what it is about. By dawn they will have a ruling. The harvest it governs was brought in a week ago.
The drift through their hands
Every Declaration pronounced in Avalon is the order's before it is anyone's. The local Declaration-priests read the futures and speak the verdicts, but the policy that shapes what they read for, how many soldiers the country wants this decade and how many farmers, which bloodlines are bred toward and which are let lapse, comes down from the Solum Impervium. The roll-keepers who file the verdicts have noticed the policy bending. Over two generations the order has asked for more soldiers, more children declared to hard and short-lived work, more marriages arranged for breeding rather than contentment. The roll-keepers cannot say what the bending is for. Neither can the order. It is passing along a shape it receives from the throne and trusts the throne to be wise.
There is a forgery in those rolls. A second-ring priest named Doremin wrote a child a false Declaration in the proper hand, sealed it with the proper rites, and filed it among the true ones, and not one high priest of the Solum Impervium has ever caught it. The order that governs by reading perfectly missed a forgery in its own ledger. It does not know the forgery is there. That is the flaw in an order certain of its own sight. It does not check the things it is sure of, and it is sure of nearly everything.
Those who have started to read it
The Solum Impervium is supposed to be the most faithful ring in Avalon, the priests who serve the Ecclesiarch's vision without doubting it. Most of them do. A growing few do not. Vesperin, one of the order's senior interpreters, has spent a decade reading the drift the roll-keepers only feel, and he has reached a conclusion he cannot say in the inner ring: that the fragments the order has been faithfully stretching into policy no longer add up to a nation being governed, only to a nation being slowly spent, and that to interpret them faithfully now is to administer harm with clean hands. He has not found the bottom of it. He does not know what the spending is for, only that it is happening and that the order is the instrument of it.
Vesperin cannot move. To show the drift is to argue that the Ecclesiarch's pronouncements have stopped cohering, and the moment the Solum Impervium concedes that, it concedes that the sight it interprets has a flaw in it, and the order's whole authority rests on the sight being whole. So he serves, and reads, and says nothing, and watches his colleagues serve beside him by the simpler method of not looking too closely at the numbers. Which of them is the more loyal is a question the order does not know it contains.
The deeper danger is one the order has not let itself name. Maurolin's slowness has always served the Solum Impervium, because an Ecclesiarch who cannot govern leaves the governing to them. But the same longevity that keeps him frozen and harmless is reaching its limit, and if extending it ever begins to spend Temptari lives in earnest, the lives it spends will be the order's own subordinates, the farmers and soldiers and roll-keepers the Solum Impervium administers. The priests who govern in Maurolin's name have never had to ask whether he would govern them to death. Vesperin has started to.