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Erin Hart Books in Order

Browse Erin Hart books in order, with short summaries of the Nora Gavin novels, series background, and clear suggestions on where to start reading.

Last updated: July 10, 2026

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Erin Hart books in publication order

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4 books

Haunted Ground

by Erin Hart

2003

Two farmers uncover the severed head of a young woman in a west Ireland bog. American pathologist Nora Gavin and archaeologist Cormac Maguire trace the ancient death, only to find it tangled with a modern disappearance and a village full of old suspicions.

Lake of Sorrows

by Erin Hart

2004

At a bog excavation in Ireland's midlands, Nora is called in when an Iron Age body is found, then a modern corpse appears nearby with the same ritual wounds. As Nora and Cormac investigate, desire, rumor, and greed make the case steadily more dangerous.

False Mermaid

by Erin Hart

2010

Nora returns to Minnesota, still haunted by her sister Tríona's unsolved murder, when the man she suspects is about to remarry. While Cormac follows a century-old disappearance in Donegal, Nora digs into family secrets that put a child, and herself, at risk.

The Book of Killowen

by Erin Hart

2013

Nora and Cormac investigate two murdered men found together in an Irish bog, one a ninth-century corpse, the other missing TV philosopher Benedict Kavanagh. Their search leads toward buried manuscripts, academic rivalries, and the uneasy ways the past keeps shaping the present.

Where to start with Erin Hart

If you want the full Nora and Cormac story: Haunted GroundLake of SorrowsFalse MermaidThe Book of Killowen
If you want the strongest Irish bog atmosphere: Haunted GroundLake of Sorrows
If you want Nora's most personal case: False MermaidThe Book of Killowen
If you want the history-heavy mysteries first: Lake of SorrowsThe Book of Killowen

Erin Hart sub-series and character series

Nora Gavin books in order

Explore this series
  1. Book cover for "Haunted Ground"

    Haunted Ground

    by Erin Hart

    2003Nora Gavin, Book 1
  2. Book cover for "Lake of Sorrows"

    Lake of Sorrows

    by Erin Hart

    2004Nora Gavin, Book 2
  3. Book cover for "False Mermaid"

    False Mermaid

    by Erin Hart

    2010Nora Gavin, Book 3
  4. Book cover for "The Book of Killowen"

    The Book of Killowen

    by Erin Hart

    2013Nora Gavin, Book 4

Nora Gavin books in chronological order

  1. Book cover for "Haunted Ground"

    Haunted Ground

    by Erin Hart

    2003Nora Gavin, Book 1
  2. Book cover for "Lake of Sorrows"

    Lake of Sorrows

    by Erin Hart

    2004Nora Gavin, Book 2
  3. Book cover for "False Mermaid"

    False Mermaid

    by Erin Hart

    2010Nora Gavin, Book 3
  4. Book cover for "The Book of Killowen"

    The Book of Killowen

    by Erin Hart

    2013Nora Gavin, Book 4

Author bio

Erin Hart was born in Crawfordsville, Indiana, and raised in Rochester, Minnesota. She studied theater at Saint Olaf College, later did graduate work in creative writing at the University of Minnesota, and for a long time it looked as if her working life would stay closer to stages and rehearsal rooms than to crime novels. Ireland was part of the picture early. A college trip there turned a long-standing interest into something much more lasting.

She did not take a straight road to fiction.

Before publishing novels, Hart worked a surprisingly wide range of jobs: stage manager, propmaster, editor, copywriter, writing teacher, journalist, and theater critic. She also helped promote traditional musician friends and co-founded a local Irish Music and Dance Association in Minnesota. Music mattered in her personal life too, since she met her husband, Irish button accordion player Paddy O'Brien, after he asked her to sing onstage not long after one of her trips to Ireland.

Fiction arrived later. While working and studying at the University of Minnesota, she took a fiction class and wrote a short story, Waterborne. It was the first short story she had ever written. When it won the Glimmer Train Short Story Award for New Writers in 1996, literary agents started calling, and Hart got a real push toward the novel she had been thinking about for years.

The seed of that book came from a story she heard in western Ireland in 1986, about a red-haired girl's head discovered in a bog.

That image grew into Haunted Ground, published in 2003. The book introduced American pathologist Nora Gavin and Irish archaeologist Cormac Maguire, and it also set the pattern for much of Hart's fiction: present-day crimes that open into archaeology, folklore, and the stubborn weight of older history. Haunted Ground won the Friends of American Writers award and Romantic Times' Best First Mystery, and it was a finalist for both the Agatha and Anthony awards.

Hart followed it with Lake of Sorrows, False Mermaid, and The Book of Killowen. Readers tend to come for the mystery and stay for the mix of bogs, music, buried family stories, and the uneasy sense that the past is still pressing on the living. Lake of Sorrows was a Minnesota Book Award finalist. False Mermaid was named among the year's top crime novels by Booklist, and The Book of Killowen later became another Minnesota Book Award finalist.

What stands out in Hart's work is how much research sits behind it without ever taking over the story. She has spent years talking with archaeologists, pathologists, police officers, historians, and other specialists, using the same reporting habits she developed as a journalist and critic. The books are full of detail, but the real center is human: grief, desire, memory, guilt, and the ways place can shape a life.

These are crime novels, but they are also books about belonging. Nora is often an outsider in Ireland, even as she builds a life there, and that tension gives the series some of its bite. Cormac is more rooted in the local landscape, but he is hardly simple or settled. Together they let Hart explore what happens when personal history and national history keep rubbing against each other.

Hart lives in Minnesota with Paddy O'Brien, and the two have long mixed writing and music in their public appearances. She returns to Ireland often for family, research, and close observation. That combination, Minnesota practicality and Irish memory, runs through nearly everything she writes.

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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