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Dead Reckoning cover
Spent Light · Book One

Dead Reckoning

A standalone first-command thriller: a survey ship cut off from home, command in the wrong hands, and a long way back by dead reckoning.

Months out into an uncharted region, the survey ship Endurance loses her captain to sabotage and every link to home in the same hour — no relay, no charted lane, no line back. Command falls by emergency authority to a Geneva diplomat who has never run a ship, while the one officer who could hold the deck is the one nobody picked.

Cut off, outnumbered, and bleeding systems she can't replace, the Endurance has to find her own way back the oldest way there is — by dead reckoning, trusting nothing but her own logged track and the nerve of a crew that isn't yet a crew. Every choice costs something that doesn't come back.

Era

2240

Series

Book One of Spent Light

Price

Kindle Unlimited

Also available

New to R. S. Breed? This is the recommended entry point to the Fracture Cosmology — a standalone story that stands entirely on its own, and an open door to everything else. Read it first, or read it alone; both work.

If you came for the action

A first-command thriller with teeth: a fleet engagement you watch from inside a dying hull, breach-suited boarding actions in the dark, and a ship that has to cannibalise itself to keep moving. You don’t need a single other book to follow it. Jump in.

If you came for the hard SF

Navigation done honestly — a blind ship reckoning its position from its own logged motion, error growing in the count, no magic fix. A cost ledger where spent systems stay spent. And, underneath, the first deep look at a universe a dozen novels are quietly building toward.

Artefacts from this book

The archive →

In-universe records, blueprints, and documents drawn from Dead Reckoning — the institutional paper trail behind the story.

Blueprint
Anchorage Patchwork Hull — Reconstruction
Spent Light Blueprint

Anchorage Patchwork Hull — Reconstruction

An ISCA-TI intelligence reconstruction of an Anchorage clandestine-fleet vessel, built from fragments — no class, no registry, no two alike. A hull cut from donor ships and welded into a biography of the ships it was scavenged from.

Blueprint
ISV Endurance — Blueprint
Spent Light Blueprint

ISV Endurance — Blueprint

Meridian-class deep explorer, EX-01. Modular hull mated at structural collars. The collars that make her quick to refit are the ones an act of sabotage will exploit.

Field Log
ISV Endurance — Bridge Log
Spent Light Field Log

ISV Endurance — Bridge Log

The autologged bridge record of the fold that should have been routine. Commit, anomaly, cold collapse — then NO CARRIER, and a nav mode no one trains for any more.

Document
ISV Endurance — Damage Control Assessment
Spent Light Document

ISV Endurance — Damage Control Assessment

D. Ferris

Aft third sheared at the collars. Fifty-eight dead. One drive commit remaining. The ledger of a ship that has to keep flying anyway.

Document
ISV Endurance — Salvage & Refit Inventory
Spent Light Document

ISV Endurance — Salvage & Refit Inventory

D. Ferris

The quartermaster's ledger of a proud new ship becoming a patchwork that works — scavenged hull-alloy, alien feedstock welded to the frames, a magazine spent to zero and re-sleeved with enemy rounds.

Letter
Julian Mercer — Private Journal
Spent Light Letter

Julian Mercer — Private Journal

J. Mercer

A handful of entries from the slate of a man who has only ever run a room, now running a ship with no way home. Never filed.

Blueprint
Meridian-Class Orbital Shipyard — Construction Schematic
Spent Light Blueprint

Meridian-Class Orbital Shipyard — Construction Schematic

How a kilometre-class deep explorer comes to be: a Meridian hull in its orbital assembly cradle, dwarfing the tugs that build her. Section-mated, collar-joined, and never once on a planet. The scale of the Endurance, drawn honestly.

Report
The Anchorage — Threat Assessment (2218)
Spent Light Report

The Anchorage — Threat Assessment (2218)

ISCA-TI · Movements Desk

The institution's first standing assessment of the Anchorage. Read it for what an intelligence service sounds like when it has decided, in advance, that the thing it is looking at cannot hurt it. Every confident sentence here was wrong by a different route.

Report
The Anchorage — Threat Assessment (2235)
Spent Light Report

The Anchorage — Threat Assessment (2235)

ISCA-TI · Movements Desk

Seventeen years on, the same desk corrects itself. It was right that the Anchorage will not harm a person, and it revised everything else. What it could not do — what it did not do — was notice that those two facts do not protect anyone.

Memorandum
Distribution Memo — Assessment 2235 (Awareness Only)
Spent Light Memorandum

Distribution Memo — Assessment 2235 (Awareness Only)

ISCA-TI · Registry

The most honest document in the archive, because it is the one that did the least. A one-page slip recording who received the Anchorage assessment, what they were asked to do about it — nothing — and who, five years later, went looking for it.

Broadside
To Save the Earth, Save the Universe
Spent Light Broadside

To Save the Earth, Save the Universe

Stave Press · Bergen

A recruitment broadside of the mainline Anchorage — the reformers, not the cells. Pressed by hand in Bergen and left on benches and bar tops across the northern ports. It argues, in the movement's own plain creed, that you cannot wall a single world off from a wound in the whole of things.

Handbill
No More Tolerances
Spent Light Handbill

No More Tolerances

Attribution — Anchorage splinter cell

A handbill of a different hand entirely — pulled from a locker at the repair yards, attribution assessed to one of the Anchorage's breakaway cells. The mainline movement prints in the open and disavows this. The cells print in the dark. The institution, characteristically, struggles to tell the two apart.