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Mortimer Angel Books in Order

Part ofRob Leininger Books in Order

Browse the Mortimer Angel books in order by Rob Leininger, with summaries, series background, and help choosing the best place to start.

Last updated: July 12, 2026

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Mortimer Angel books in publication order

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7 books

1

Gumshoe

by Rob Leininger

2014

On his first day as a Reno PI-in-training, former IRS agent Mortimer Angel stumbles into the city's biggest case: a missing mayor, a missing district attorney, and a severed head in his ex-wife's Mercedes. Funny, grubby, and dangerous.

2

Gumshoe for Two

by Rob Leininger

2017

Mort is hired by Sarah Dellario, a college engineering student posing as a hooker, to find her missing sister. The search leads from Reno to Gerlach and into the disappearance of a presidential candidate.

3

Gumshoe on the Loose

by Rob Leininger

2018

Relaxing in a Reno casino bar, Mort agrees to help a young woman who received a million-dollar demand. He soon finds the body of missing rapper Jo-X and gets dragged into a messy, dangerous case that runs all the way to Las Vegas.

4

Gumshoe Rock

by Rob Leininger

2019

Mort and his assistant Lucy are working an embezzlement case when the stripped skull of Mort's old IRS boss turns up in Lucy's car. What looks grotesque and random becomes a deeply personal Reno investigation.

5

Gumshoe Gone

by Rob Leininger

2021

After a beautiful stranger from a casino bar spirits Mort away, he vanishes for days and reappears on a strange new case. The trail sends him across the West and into one surprise after another.

6

Gumshoe in the Dark

by Rob Leininger

2021

On a stormy Nevada road, Mort stops for a half-dressed young woman and ends up pulled into his deadliest case yet. With Harper Leeman beside him and a killer behind them, every mile gets worse.

7

Gumshoe Outlaw

by Rob Leininger

2022

When the U.S. attorney general disappears after leaving the Justice Department, Mort is quietly asked to help find her. The case pulls Reno's most reluctant celebrity gumshoe into Washington intrigue and fresh danger.

Mortimer Angel books in chronological order

  1. Book cover for "Gumshoe"

    Gumshoe

    by Rob Leininger

    2014Mortimer Angel, Book 1
  2. Book cover for "Gumshoe for Two"

    Gumshoe for Two

    by Rob Leininger

    2017Mortimer Angel, Book 2
  3. Book cover for "Gumshoe on the Loose"

    Gumshoe on the Loose

    by Rob Leininger

    2018Mortimer Angel, Book 3
  4. Book cover for "Gumshoe Rock"

    Gumshoe Rock

    by Rob Leininger

    2019Mortimer Angel, Book 4
  5. Book cover for "Gumshoe in the Dark"

    Gumshoe in the Dark

    by Rob Leininger

    2021Mortimer Angel, Book 5
  6. Book cover for "Gumshoe Gone"

    Gumshoe Gone

    by Rob Leininger

    2021Mortimer Angel, Book 6
  7. Book cover for "Gumshoe Outlaw"

    Gumshoe Outlaw

    by Rob Leininger

    2022Mortimer Angel, Book 7

Series background & context

The Mortimer Angel books begin with a great comic noir premise. Mortimer, who much prefers Mort, quits the IRS after years of soul-killing work and decides to become a private investigator in Reno. In Gumshoe, he is barely hours into the new career before he is tangled up in a missing mayor, a missing district attorney, and a body part in the trunk of his ex-wife's car.

That is pretty much the series in miniature.

Mort is not a polished super-sleuth. He is stubborn, impulsive, wry, easily distracted by a beautiful woman, and just self-aware enough to know he is often making his life harder. He starts out training at his nephew's detective agency and later works cases through Clary Investigations, but the real through-line is not the office. It is Mort himself, blundering forward, taking hits, getting lucky, and refusing to back away once somebody is in trouble.

Reno and the wider Nevada landscape do a lot of the heavy lifting. These books move through casino bars, cheap motels, desert roads, small towns, and stretches of open country where help is far away and bad decisions last a long time. Leininger uses the West well. The distances matter. So do the odd characters who drift in and out of Mort's path, from clients with secrets to women who may need saving, may be running a scam, or may be both at once.

The cases have a habit of starting weird and then getting weirder. Gumshoe for Two sends Mort after a missing young woman and into the orbit of a vanished presidential candidate. Gumshoe on the Loose begins with a million-dollar demand and the body of a missing rapper. In Gumshoe Rock, the stripped skull of Mort's old IRS boss lands in his assistant Lucy's car. Gumshoe in the Dark starts with a stranded woman on a stormy road and turns into one of Mort's most dangerous hunts. Then Gumshoe Gone and Gumshoe Outlaw push him into still larger disappearances and higher-profile trouble.

What holds it together is the tone. These are hardboiled mysteries, but they are not solemn. Mort wisecracks, complains, gets embarrassed, gets beat up, and keeps going. The humor can be broad, the violence can be sharp, and the books know how absurd crime can look from ground level. At the same time, the stakes are real. Missing people stay missing. Powerful people lie. Mort's choices cost him.

If you are looking for sleek, clinical detective fiction, this is probably not that. If you want a series with a lived-in voice, western mileage, and a hero who feels like a smart mess instead of a machine, it is easy to see the appeal. Start with Gumshoe and read forward. Mort grows on you, partly because he keeps surviving cases that really ought to have finished him, and partly because underneath all the noise he has a decent heart.

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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