There are 10 books in the A Kate Delafield Mystery series. The newest book is Delafield which came out in 2022.

1
Amateur City

Book cover of Amateur City
Tough and demanding LAPD Detective Kate Delafield is the leader of the investigation into a highrise office building murder. The case is intriguing but routine―until Kate interviews the only witness, Ellen O’Neil.

When Ellen O’Neil took her new job over the objections of her lover, she wasn’t expecting to become…
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On Thanksgiving Day, LAPD homicide detective Kate Delafield and her partner, Ed Taylor, are called to an apartment building on the edge of Beverly Hills to investigate a premeditated and pitiless murder.

No one appears particularly grieved by the shocking end to old-time Hollywood director Owen Sinclair. Surely not three…

4
Murder by Tradition

Murder by Tradition

When a successful gay restaurateur is stabbed to death, Kate Delafield’s investigation puts her in conflict with her own fear of being outed as a lesbian. Can Kate testify for the prosecution with her integrity intact, when the killer’s attorney, the only man who knows the truth about Kate’s -sexuality,…

5
Liberty Square

Liberty Square
Journeying to Washington, D.C., for an FBI seminar, lesbian LAPD homicide detective and ex-Marine Kate Delafield is thrust into an adventure in which she must seek out a killer from among her former military colleagues. Reprint.

6
Apparition Alley

Apparition Alley
In a riveting new mystery about corruption and murder inside the L.A.P.D., Kate Delafield investigates the murder of a Los Angeles police officer who is about to reveal some deep, dark secrets. Tour.

7
Sleeping Bones

Sleeping Bones
No bones about it. "L.A. policewoman Kate Delafield has been the most acclaimed of the lesbian detectives."--Ellery Queen Mystery Magazine

"Ms. Forrest's Los Angeles homicide detective Kate Delafield makes a strong impression...[she] plies her trade with admirable efficiency and more hard-to-come-by integrity."--New York Times Book Review

L.A.P.D. Detective Kate Delafield…

8
Hancock Park

Book cover of Hancock Park
It wasn't a typical call for detectives Kate Delafield and Joe Cameron. For one thing, the upscale neighborhood of Hancock Park was more likely to be a stop on a "bus tour of the stars" than a homicide scene. For another, everyone seemed too willing to point the detectives in…

9
High Desert

Book cover of High Desert
In this long-awaited new installment of the legendary Kate Delafield mystery series, Kate is forced to confront her most formidable opponent: herself.
Five months into mandated retirement from LAPD, her long term on-again off-again relationship with Aimee Grant off again, hopelessly dependent on the only substance that can drown her…

The most celebrated detective in lesbian literature returns in the most fateful case of her career…

“Kate,” Detective Joe Cameron said, “there was always the possibility—”

“—that like most threats they were just threats,” Kate finished for him. She knew better. Had known from the start this was as real…