About the series
Techno-thrillers about the timing systems that keep modern networks in step. In every book a different specialist goes one level deeper into that machinery.
At a glance
- Genre
- Techno-thriller
- Mood
- Tense, dark
- Setting and era
- Present day
- Pace
- Medium
- Point of view
- Third person
- Reading order
- Read in order
- Heat
- Not applicable
The books in order
3 books

Book 1Start here
At three in the morning, network engineer Maren Kellner finds nothing wrong: every screen reads green. But the clocks that keep a mobile network in step have begun to drift apart, and nobody above her wants to hear it. A techno-thriller with no cavalry coming.

Book 2
On a stock exchange, the system that ranks orders by arrival time still swears it is healthy, while one trader’s fills come back in a sequence that makes no sense. The engineer who owns it and a surveillance analyst work the same logs from opposite ends.

Book 3
On a regional rail line, one section keeps turning itself to red and stopping trains, and nothing on the panel explains why. Every instrument points at the signaller who holds the seal. A stopped train is the safe result; the danger is whoever overrides it.
Where are you in the series?
Each stop is its own page. Bookmark yours; we save nothing.
- Nothing yet: start with Book 1

Book 1
Doomsday Holdover
At three in the morning, network engineer Maren Kellner finds nothing wrong: every screen reads green. But the clocks that keep a mobile network in step have begun to drift apart, and nobody above her wants to hear it. A techno-thriller with no cavalry coming.

Book 2
Doomsday Sequence
On a stock exchange, the system that ranks orders by arrival time still swears it is healthy, while one trader’s fills come back in a sequence that makes no sense. The engineer who owns it and a surveillance analyst work the same logs from opposite ends.

Book 3
Doomsday Epoch
On a regional rail line, one section keeps turning itself to red and stopping trains, and nothing on the panel explains why. Every instrument points at the signaller who holds the seal. A stopped train is the safe result; the danger is whoever overrides it.
Get the series
Book 1Doomsday Holdover
E-book
Paperback
Book 2Doomsday Sequence
E-book
Paperback
Book 3Doomsday Epoch
E-book
Paperback
Questions
Do I have to read the books in order?
Yes. Each book gives away how the earlier ones end, so read them in the order they are listed.
Where do I start?
With Book 1, Doomsday Holdover.
How many books are there?
The series has 3 books. It is complete.
About Sebastian Sterling
Sebastian Sterling writes thrillers that begin where the paperwork does. A soil sample that reads wrong. A payment that clears too smoothly. A coffin that weighs the wrong amount. A file with a name in it that should have been dead for thirty years.








