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

Book 1
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.

Book 2
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.

Book 3
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.
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.

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.

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.

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
Names and roles that are safe before you start.
Get the series
Book 1Overfit
E-book
Paperback
Book 2Underfit
E-book
Paperback
Book 3The Gold Set
E-book
Paperback
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.














