Author Information
Rob Osler's Latest Book

Newest Release

  • Bibliography:
    4 Books (2 Series)
  • First Book:
    February 2022
  • Latest Book:
    February 2026
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Full Series List in Order

Harriet Morrow Investigates)

1 - The Case of the Missing Maid (Dec-2024)

A Hayden and Friends Mystery

1 - Devil's Chew Toy (Feb-2022)
2 - Cirque du Slay (Mar-2024)

Book List in Order: 4 titles



  • 2023 LEFT COAST CRIME LEFTY AWARD NOMINATION: Best Debut Mystery Novel2023 AGATHA AWARD NOMINATION: Best First Novel2023 ANTHONY AWARD FINALIST: Best Novel2023 MACAVITY AWARD NOMINATION: Best First MysteryA POPSUGAR BEST MYSTERY OF 2022A BOOKRIO...



  • In this rollicking mystery sure to delight fans of Richard Osman's Thursday Murder Club and Robert Thorogood's Marlow Murder Club series, the circus becomes the stage for a high-profile murder investigation. With quirky LGBTQ+ amateur sleuths, Cirque...



  • The acclaimed author of the Anthony, Agatha, Macavity, and Lefty Award-nominated Devil’s Chew Toy delights with the first in a new historical mystery series set in turn-of-the-19th-century Chicago, as America is entering its Progressive Era and Har...



  • Harriet Morrow, a spunky, bike-riding, independent, lesbian P.I. in turn-of-the-20th century Chicago, is back on the case in this brilliant historical mystery inspired by a real-life Windy City detective â€" from theacclaimed author of the Anthony, A...




Frequently Asked Questions (FAQ)

Rob Osler has published 4 books.

The next book by Rob Osler, The Case of the Murdered Muckraker, will be published in February 2026.

The first book by Rob Osler, Devil's Chew Toy, was published in February 2022.

Yes. Rob Osler has 2 series.