police procedural · techno-thriller

August Reyes Investigations

The camera is the only witness.

  • Complete · checked Oct 2026
  • 3 books

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About the series

Detective August Reyes works murders with index cards and a fountain pen, because a facial-recognition match once sent an innocent man to his death. Each book puts him in a death in the technology industry that the evidence says cannot have happened.

At a glance

Genre
Police procedural, techno-thriller
Mood
Reflective
Setting and era
Present day, United States
Pace
Fast
Point of view
Third person
Reading order
Read in any order
Heat
Not applicable

The books

3 books

  1. Book 1

    Overfit

    On launch night at Silicon Valley’s most revered AI lab, the founder dies in a sealed room. The cameras swear no one went in; the autopsy says murder. Detective August Reyes, who trusts index cards over algorithms, has to prove a killing the perfect witness never saw.

    E-book · Paperback

  2. Book 2

    Underfit

    A test vehicle on a levee road, a driver dead in the bay mud, and seventy-two hours before the only footage is wiped. August Reyes has learned to doubt machines, and now the doubt may blind him.

    E-book · Paperback

  3. Book 3

    The Gold Set

    A data labeler is found dead in a stairwell after one night spent changing the answer key that every system is graded against. Nothing was forged. August Reyes must learn what she moved before it frees a killer.

    E-book · Paperback

Where are you in the series?

Start anywhere. Each book has a page of its own for when you have finished it; we save nothing.

  1. Book 1

    Overfit

    On launch night at Silicon Valley’s most revered AI lab, the founder dies in a sealed room. The cameras swear no one went in; the autopsy says murder. Detective August Reyes, who trusts index cards over algorithms, has to prove a killing the perfect witness never saw.

  2. Book 2

    Underfit

    A test vehicle on a levee road, a driver dead in the bay mud, and seventy-two hours before the only footage is wiped. August Reyes has learned to doubt machines, and now the doubt may blind him.

  3. Book 3

    The Gold Set

    A data labeler is found dead in a stairwell after one night spent changing the answer key that every system is graded against. Nothing was forged. August Reyes must learn what she moved before it frees a killer.

Your companion

  • Who’s who

    Names and roles that are safe before you start.

Get the series

  1. Book 1Overfit

  2. Book 2Underfit

  3. Book 3The Gold Set

Questions

Do I have to read the books in order?

No. Every book stands on its own, so you can start with any of them.

How many books are there?

The series has 3 books. It is complete.

About Cara Lindqvist

Cara Lindqvist writes crime novels about cold places and the things they preserve. Her books begin with a body in a landscape that should not have kept it. A woman sealed flawless inside a festival ice sculpture on a frozen Chinese river. A scientist murdered in the world’s northernmost town, where burial is forbidden because the ground will not let the dead decompose.

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