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The reader’s companionReferences · Published prose only

The unresolved mysteries register

Questions the published stories leave genuinely open—without answers borrowed from private plans.

First edition · Sources are the public chapters. Spoilers through Book 22, Chapter 16. Each entry labels its source-book scope; entries are visible below.

This register stops at the current public boundary. “Open” means the prose has not settled the question; it is not a hint that a private answer exists.

Through Book 1 · open

What survived the Confluence?

The Eaters’ particular attacks are defeated, but the published ending does not demonstrate that every erased history or victim was restored.

Evidence note: Absence of a universal restoration scene is not proof of universal loss.

Through Book 1 · unresolved disappearance

Where did Cilaron Thane go?

Thane collapses and disappears after the confrontation; the prose does not establish an ordinary biological death.

Through Book 2 · partially explained

What is the full origin of the Spiral Accord?

Its linguistic machinery and treaty logic are encountered, but the complete history of its makers is not supplied as a settled account.

Through Book 14 · ongoing uncertainty

How much of the Doctor’s ancient Gallifreyan memory is reliable?

The stories provide founders, visions and missing intervals, but later prose repeatedly treats recollection as evidence to test rather than an infallible archive.

Through Book 14 · bounded uncertainty

What exactly became of MINO between loss and restoration?

MINO’s loss is a real event and a later backup returns through the watch hologram; full continuity of memory and embodiment is not exhaustively proved.

Through Book 17 · institutional mystery

Who first designed the Kharon Spire’s deepest system?

The published adventure exposes CORMORANT and the industrial structure, while older responsibility remains distributed across records and institutions.

Through Book 18 · future beyond the page

Can Parish Nine rebuild trust without another false comfort?

The Nestene system is defeated, but the final chapter leaves the community with records, grief and the slower work of rebuilding.

Through Book 19 · closed archive, open contents

What did the Memory House remember that no one asked it to release?

The Remanent is addressed and the House quiets, but the archive’s complete holdings remain intentionally unopened.

Through Book 20 · open limit

How far can Yara’s distributed existence reach?

Communication through the Circle is limited and imperfect; later messages do not prove receipt, unlimited presence or effortless return.

Through Book 22 · active investigation

What is the Steadfast Observer?

The Vorath record names a role and Vareth’s systems preserve evidence around it, but identity, source lineage and full purpose remain incomplete in published chapters.

Through Book 22 · not demonstrated

Can a Vareth branch survive independently?

Several arrangements are excluded or shown only to satisfy necessary conditions. No published test demonstrates a safe, self-sustaining populated branch.

Through Book 22 · open technical cause

What caused the quiet interval to become ragged?

The timing change correlates with the suppressor event, but the published evidence does not establish causation or a complete maintenance map.