Margaret Coel Books

Killing Custer

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Arapaho attorney Vicky Holden and Father John O’Malley are caught between two cultures that won’t let go of the past—and a killer who won’t leave any witnesses… On the anniversary of the Battle of...

Watching Eagles Soar

By Margaret Coel

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In this thrilling collection of short stories, New York Times bestselling author Margaret Coel invites you to follow Father John O’Malley and Vicky Holden further into the hidden mysteries and crim...

Wife of Moon

By Margaret Coel

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Arapaho attorney Vicki Holden and Father John O'Malley must find the link between the murder of a woman—and the murder of her ancestor from a century earlier.

The silent spirit

By Margaret Coel

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Blood Memory

By Margaret Coel

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Investigative reporter Catherine McLeod is covering a claim filed by the Arapaho and Cheyenne tribes for twenty-seven million acres of their ancestral lands. Her relentless pursuit of the truth wil...

The Girl with Braided Hair

By Margaret Coel

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Attorney Vicky Holden and Father John O?Malley investigate the death of Liz Plenty Horses?a woman murdered back in 1973 after being accused of betraying the militant American Indian Movement?and in...

Blood memory

By Margaret Coel

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Catherine McLeod is an investigative reporter for the "Journal," one of Denver's major newspapers. Her recent coverage of the Arapaho and Cheyenne tribes filing a claim for twenty-seven million acr...

The Silent Spirit

By Margaret Coel

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Kiki Wallowingbull went to Hollywood to uncover the truth behind why his great-grandfather disappeared back in 1923. But after Kiki's frozen body is discovered on the reservation, Arapaho attorney...

The Spider s Web

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.