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  • Published: 14 July 2026
  • ISBN: 9780593816806
  • Imprint: Berkley
  • Format: Hardback
  • Pages: 352
  • RRP: $65.00
Categories:

The Forty-Year Grudge




When the World's Greatest Detective reunites with her college friends, she discovers that time doesn't heal all wounds.

When the World’s Greatest Detective reunites with her college friends, she discovers that time doesn’t heal all wounds.

It's been four decades since the women of Sigma Delta Tau were last together. The passing years, growing families, and maturing careers may have strained the bonds of sisterhood, but now a reunion at the Western ranch of one member offers an opportunity to renew acquaintances…and at least one long-standing grudge.

Still, this weekend is supposed to be a pleasant diversion for former sorority member and current private investigator Aubrey Merritt. She's come to New Mexico to reconnect with old friends and she's brought along her personal assistant, Olivia Blunt—an aspiring detective who is learning more about packing bags on this trip than about solving crimes.

The shocking murder of a sorority sister changes everything. With the local police overmatched, all eyes turn to Merritt and Blunt to crack the case. With a surprising abundance of suspects, it's going to take both of them to cut through the knot of old hurts and current grievances to find the killer.

  • Published: 14 July 2026
  • ISBN: 9780593816806
  • Imprint: Berkley
  • Format: Hardback
  • Pages: 352
  • RRP: $65.00
Categories:

About the author

Liza Tully

Liza Tully is a pseudonym for Elisabeth Brink, who writes dark thrillers under the name Elisabeth Elo, as well as literary fiction under the name Elisabeth Panttaja Brink. Visit her at www.lizatully.com.

Also by Liza Tully

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Praise for The Forty-Year Grudge


PRAISE FOR THE WORLD'S GREATEST DETECTIVE...:

"A sly, intelligent re-imagining of the classic detective novel, pairing a famously irascible sleuth with a self-deprecating millennial apprentice. 
As Olivia Blunt navigates the eccentricities of her formidable mentor Aubrey Merritt, and a labyrinthine case involving a suspicious death among the elite, the novel explores themes of intergenerational tension, epistemic authority, and the nature of truth. 
    Tully’s prose is crisp and witty, her plotting precise, and the dynamic between her leads as psychologically astute as it is entertaining. A savvy, layered mystery with real narrative charm."—The Seattle Times

“This novel succeeds through memorable characters at odds with each other (and sometimes themselves) across generational divides. A solidly entertaining read, especially for lovers of traditional mysteries."
                                                          —Kirkus Reviews

"A traditional mystery full of quirky characters and humorous situations. . . . The ending may be totally surprising as Aubrey delivers quite the denouement in the tradition of Agatha Christie."—FirstClue

"This is a classic wealthy-family whodunit centered on a funny and smart pair of women who are opposites in just about every way. Readers will love spending time with this investigatory duo."
                                                            —Library Journal

"A well-written drama that had me immediately immersed in all aspects of this wickedly solid storyline that kept me intrigued throughout."
                                                            —Dru's Book Musing

"Wild applause for this clever and original take on Holmes and Watson—with lead characters who are iconic and relatable from page one."
                             —USA Today bestselling author Hank Phillippi Ryan 

"I can't stop recommending this book to my friends! Fun, funny, and with the best murder mystery I've read this year, Liza Tully's The World's Greatest Detective and Her Just Okay Assistant will both charm you and keep your brain busy trying to guess whodunit."   
—Jessica Payne, bestselling author of Never Trust the Husband and Make Me Disappear

"Tully juggles a near-overload of characters and red herrings, but she pulls it off, largely thanks to Olivia’s spirited first-person narration and the book’s focus on her fraught mentor/mentee relationship with Aubrey. Readers will be eager for a sequel." —Publishers Weekly