Custodians of the Lower Stacks

The Custodians of the Lower Stacks are the custodial order charged with the maintenance, supervision, and physical integrity of the Lower Stacks, the Tower's principal repository district. The order is distinct from, and frequently at odds with, the Custodians of the Stacks, whose purview is general and whose relationship to the Lower Stacks is one of oversight rather than custody. Membership of the Custodians of the Lower Stacks is never stated. Their authority within the Lower Stacks is never questioned in writing.

The order maintains its own chronicle, the Annals of the Lower Stacks, which is housed in the Scriptorium of the Lower Stacks and to which no external audit has been applied since the Reorganization of Spiral Δ-. In ordinary usage the Custodians are referred to simply as the Lower Custodians, a contraction the order has neither adopted nor forbidden.

Jurisdiction and its ambiguities

The Custodians' writ runs from the first sub-basement to the threshold of the Negative Stacks, a classified repository district they administer but are not permitted to enter above the ninth landing. They are responsible for the daily condition of the district: the shelving, the numbering of floors (where the numbering is found to have drifted), the rotation of holdings in the Whispering Stacks where these permeate Lower Stacks sectors, and the transfer of materials from the Veiled Stacks deemed fit for permanent cataloguing.

The boundary with the East Unbound Stacks is settled at Wall Σ-9, which the Custodians maintain and the East Unbound do not acknowledge. A joint survey of the wall was attempted in the winter of 741 and abandoned on the fourth day when the two parties could not agree which side of it they were standing on. The surveyors' report is filed with the Custodians and is nine pages long, six of which are blank.

"The wall is maintained by us. That is the whole of the question. What the East Unbound believe about it is a matter for the East Unbound."

— Nineteenth Concordance, Annex 2

The Annals and the matter of the Reorganization

The Custodians derive nearly all of their operating protocol from the precedents established at the Lower Stacks Reorganization of Spiral Δ-, which remains the most cited precedent in their institutional life and the least often read in full. The Annals record that the Reorganization settled, in a single sitting, the disposition of some forty thousand displaced volumes, the question of whether a floor may be renumbered twice in a lifetime, and the seating order of the custodial benches. Only the third of these has held.

A minority position, associated with the Historiographical Society of the Lower Stacks, holds that the Reorganization is a later fabrication assembled to give the Custodians a founding document. The Society points out that no two recensions of the Annals agree on the year, and that the earliest recension gives the year as a blank ruled box. The Custodians have not responded to this in writing. Their silence is itself cited as precedent.

Relations with the Silent Stacks

Cooperation between the Custodians of the Lower Stacks and the Custodians of the Silent Stacks is conducted by means of a standing letter, revised annually, which is never sent. The Custodians of the Silent Stacks administer their own district and report to the Senior Librarians, and the Lower Custodians have found that the arrangement works best when neither order is reminded of the other's existence. The specialist sub-cadre known as the Custodians of Static Geometry has in the past been seconded to the Lower Stacks to resolve the shelving of volumes that could not be made to lie flat, and its findings, published under the title Aperture Notes, are required reading for new Lower Custodians.

The Lower Stacks Excavation (890-Σ) was conducted by the Custodians without reference to either the Silent Stacks or the general Custodians, and its results were deposited in the Negative Stacks and have not been consulted since. A request for the results, lodged by the Custodians of Potential Geometry in 892, remains unanswered.

Seals and the dispute of 743

The Custodians authenticate their acts with the Lower Seal, a disc of no fixed diameter, impressions of which are taken at the moment of signing and not afterwards. In 743 a dispute arose with the general Custodians of the Stacks over whether a document bearing the Lower Seal required counter-impression by the Upper. The question was referred to the Concordances and remains unresolved, because the Twenty-Fourth Concordance holds that the Lower Seal is sufficient without counter-impression and the Twenty-Fifth Concordance, amended four times in the same year, holds that it is not.

"Where two Concordances speak to the same seal, the later governs, unless the earlier was amended after the later, in which case the earlier governs."

— Twenty-Fifth Concordance, Annex 1

In practice the Custodians apply whichever reading favours the document in front of them, a habit that has never been challenged and is therefore not a precedent.

Day-to-day maintenance and the winter rule

The custodial year is divided into four watches. The third watch, which covers the deep sub-basements during the cold months, is doubled from the first frost to the last, on the grounds that the sub-basement lamps burn poorly and a Custodian working alone in the dark is not permitted to move a volume above the fourth shelf. The rule dates from the Paper Shortage of the Lower Stacks, when single-handed work in the lower levels produced an inventory discrepancy that took eleven years to reconcile.

Holdings deemed eligible for permanent cataloguing arrive from the Veiled Stacks on Tuesdays. The Custodians are required to log each consignment before shelving it, and are further required to leave the log open for forty days, during which any Librarian may inspect it. No inspection has been recorded since 718. The log is nonetheless left open.

Governance and the Schism

The Custodians recognize no single head. Direction is taken from a rotating bench of nine, elected by a method the order describes as "customary" and has twice declined to explain to the general Custodians. The bench's decisions are entered in the Annals under the heading Matters Settled, a heading that has, since the Schism of the Lower Stacks, also been used for matters unsettled but unlikely to be raised again.

The Schism produced two benches and one printing of the Annals in which both are listed. The Custodians have since maintained that the split was procedural rather than doctrinal, and that the procedural question — whether a bench of nine may sit as a bench of five with four abstentions — was settled by the Axial Expansion and need not be reopened. The Spiral 19-Gamma of the Lower Stacks is cited in support of this. The citation is accurate.

New Custodians are invested on the North Stair. They are issued a lamp, a key to the second landing, and a copy of the Annals as revised. The copy is not annotated, and Custodians have been asked not to annotate it.