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A Cooper and White Mystery Books in Order

Part ofJulia Derek Books in Order

Follow A Cooper and White Mystery books by Julia Derek in order, with summaries, detective-series background, and the best place to begin.

Last updated: July 15, 2026

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A Cooper and White Mystery books in publication order

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5 books

1

Sins of the Past

by Julia Derek

2016

After Kate Martinez's husband is stabbed in Central Park, Detectives Cooper and White uncover the gang ties he kept hidden. His past leaves Kate and her children exposed to a danger that is not finished.

2

A Criminal Mind

by Julia Derek

2017

When Rose Nichols's husband Mark is shot to death, the case exposes a web of motives and suspicion. Detectives Cooper and White must find the killer before grief and deception bury the evidence.

3

Deadly Dreams

by Julia Derek

2017

A woman begins to fear she may have killed someone while asleep. Detectives Cooper and White must separate nightmare from evidence before a frightening possibility becomes a deadly reality.

4

Girl With a Secret

by Julia Derek

2017

A secret held by one woman may put a man's life in danger. Detectives Cooper and White follow a case where hidden history and personal loyalty make the truth difficult to uncover.

5

Mortal Sin

by Julia Derek

2017

The strangling of wealthy lawyer Martha Moran leaves Cooper and White with a difficult investigation. Her privileged world contains secrets, resentments, and people with reasons to want her silenced.

A Cooper and White Mystery books in chronological order

  1. Book cover for "Sins of the Past"

    Sins of the Past

    by Julia Derek

    2016A Cooper and White Mystery, Book 1
  2. Book cover for "Deadly Dreams"

    Deadly Dreams

    by Julia Derek

    2017A Cooper and White Mystery, Book 2
  3. Book cover for "Girl With a Secret"

    Girl With a Secret

    by Julia Derek

    2017A Cooper and White Mystery, Book 3
  4. Book cover for "A Criminal Mind"

    A Criminal Mind

    by Julia Derek

    2017A Cooper and White Mystery, Book 4
  5. Book cover for "Mortal Sin"

    Mortal Sin

    by Julia Derek

    2017A Cooper and White Mystery, Book 5

Series background & context

A Cooper and White Mystery follows New York detectives Wilhelmina Cooper and Larry White as they investigate murders with roots in old secrets, family damage, and dangerous loyalties. The books are police procedurals, but the cases are never just about a body and a clue. Each investigation pulls apart a life that looked ordinary from the outside.

The first book, Sins of the Past, begins when stay-at-home mother Kate Martinez loses her husband Diego in a stabbing at Central Park. What seems like a robbery gone wrong leads Cooper and White toward Diego's hidden ties to gangs, rivalries, and a past he tried to leave behind. Kate's grief becomes tangled up with revelations about the man she thought she knew.

That mix of personal loss and buried history carries through the series. Deadly Dreams asks what happens when a woman fears she may have killed someone in her sleep. Girl With a Secret centers on a secret that could put a man's life at risk. A Criminal Mind begins with a woman whose husband has been shot, while Mortal Sin opens with the murder of a wealthy lawyer.

Cooper and White provide the continuing link. They are working detectives, following evidence and interviewing suspects, but they also have to deal with witnesses and victims whose stories are shaped by fear, shame, and self-protection. New York City gives the series its busy, pressured backdrop, from private homes and public parks to neighborhoods marked by old conflicts.

The tone is serious and fast-moving. These are crime stories with murder investigations at the center, along with domestic drama and questions about how long the past can stay buried. Readers who enjoy cases that begin with a simple explanation and become more complicated should find a lot to like here.

Start with Sins of the Past. The later books feature new central cases, but the detectives' partnership and the overall rhythm are best established from the beginning.

The series keeps returning to one idea: people can change their lives, but the secrets they leave behind may still come looking for them.

Edited by

Richard Reis

Software engineer whose passion for tracking book recommendations from podcasts inspired the creation of MRB.

Anurag Ramdasan

Lead investor at 3one4 Capital whose startup expertise and love for books helped shaped MRB and its growth.

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