Katie Marsh Books in Order (Updated March 5, 2026)

Katie Marsh is a UK novelist who has published uplifting contemporary fiction and, more recently, cosy crime. Her reading order is easiest if you decide first which side of her work you want: heartfelt standalones or the Bad Girls Detective Agency mysteries.

There’s no shared continuity between the two, treat them as separate shelves.

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Pick your starting point in 10 seconds

Want cosy crime with recurring leads? Start with How Not To Murder Your Ex (2023) and read forward.
Want emotional standalone fiction? Start with My Everything (2015) for the earliest entry, or Unbreak Your Heart (2021) for the most recent standalone novel.

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Bad Girls Detective Agency (Cosy Crime) – read in order

These books follow the same core group. The cases change, but the relationships and running jokes build from book to book.

1. How Not To Murder Your Ex (2023): On Clio’s birthday, her ex turns up dead on her doorstep, so she has to out-think the assumptions closing in on her, and the “Bad Girls” start solving crimes for real.
2. Murder on the Dancefloor (2024): A bachelorette weekend turns deadly, and the Bad Girls have to work a case where everyone is performing, right up until the body hits the dance floor.
3. Murder on the Menu (2025): A luxury retreat and a headline-chef tasting experience becomes a pressure-cooker mystery, with the Bad Girls trying to spot the motive before the weekend ends in more than one disaster.
4. The Mistletoe Murder Club (2025): A festive show goes dark backstage, and the Bad Girls get pulled into a Christmas-season investigation where the spectacle is a perfect cover for murder.

Next/Upcoming in this crime lane (title not reliably confirmed)

• Bad Girls Detective Agency #5 (2026): Some listings show a placeholder “brand new” 2026 entry, but I did not find a stable, widely confirmed final title to state here with confidence.
• Katie Marsh Book 6 (November 3, 2026): Boldwood’s site currently shows this as a placeholder page, not a fully detailed listing, so treat the title/position as unconfirmed until it’s updated.

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Uplifting contemporary fiction (Standalones) – any order works

These novels are designed to stand alone. If you read them in publication order, you’ll simply see her style shift and mature over time.

1. My Everything (2015): A marriage is tested after a life-changing medical shock, and the story tracks what love looks like when the person you depend on becomes someone you have to learn again.
2. A Life Without You (2016): A love-and-family-secrets story where long-buried truths surface, forcing the characters to rewrite what they thought they knew about the people closest to them.
3. This Beautiful Life (2017): A life-affirming, emotionally focused novel about holding on through a hard season, and the small moments that matter when everything is uncertain.
4. The Rest of Me (2018): A woman tries to rebuild after a shattering change, discovering that “moving on” isn’t a single decision, it’s a string of difficult, ordinary days.
5. Unbreak Your Heart (2021): A relationship-centered story about damage, recovery, and the slow work of choosing trust (in yourself and others) after a painful blow.

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Three clean ways to read Katie Marsh

1) If you’re here for recurring characters (cosy crime)

Read Bad Girls Detective Agency straight through from How Not To Murder Your Ex (2023).

2) If you want one standalone to test the waters (uplifting fiction)

Pick based on intensity:

• My Everything (2015): heavier emotional core, marriage under strain.
• The Rest of Me (2018): rebuilding and identity after upheaval.
• Unbreak Your Heart (2021): later-career voice, recovery and resilience.

3) If you want “everything” without whiplash

Read the five uplifting standalones first, then start the Bad Girls mysteries afterward. The tone shift is smoother that way.

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FAQs

Do the uplifting novels connect to each other?
No. They share themes (relationships, resilience, family pressure), not a continuing plot.

Do I have to read the Bad Girls books in order?
It’s strongly recommended. You can follow each mystery alone, but you’ll miss how the group dynamic develops.

Why do I see different publication years on store pages?
Retailers often display edition-specific dates (paperback reprints, international editions). The “first published” year is the best anchor for reading order.