Cotton Malone · Book 18

The Warsaw Protocol

Published
1 January 2020
Pages
493
ISBN-13
9781250140326
Type
novel
Cover of The Warsaw Protocol

About this book

The Warsaw Protocol is a novel by Steve Berry, released in 2020 at 493 pages. It holds position #15 in Cotton Malone. The Malta Exchange precedes it, and The Kaiser's Web follows.

Key facts about The Warsaw Protocol

The Warsaw Protocol is a novel by Steve Berry. Readers have had it since 2020. It runs to 493 pages.

Our list holds 3 editions of The Warsaw Protocol. Since each edition has its own ISBN, search for 9781250140326 to find the main one.

The Warsaw Protocol is book 18 of 23 in the Cotton Malone series. The series has 23 published books. However, the series starts with The Templar Legacy (2006). The Devil's Bible is the latest book in the series with a full release date, out on 17 February 2026.

Additionally, Steve Berry writes Cassiopeia Vitt Adventure as a separate series. Those series sit on our thriller and historical thriller shelves. Meanwhile, The Devil's Bible is the latest published Steve Berry book on file, from 17 February 2026.

About Steve Berry

Steve Berry is an American author of historical conspiracy thrillers, best known for the long-running Cotton Malone series, which follows a former U.S. Justice Department operative turned rare-book dealer in Copenhagen who is repeatedly drawn into international plots hinging on real historical mysteries and lost artifacts. See every Steve Berry book in order.

Its place in Cotton Malone

The Warsaw Protocol is book 18 in the Cotton Malone series. It follows The Malta Exchange. It is followed by The Kaiser's Web. See the full Cotton Malone reading order.

Cotton Malone is a former Justice Department covert operative (a 'Magellan Billet' agent) who retired to run an old bookshop in Copenhagen, only to keep getting pulled back into the field by his old boss Stephanie Nelle. Each novel sends him chasing a real historical mystery or lost treasure — the Knights Templar, the Library of Alexandria, Charlemagne's tomb, the Romanov dynasty, the Nazi underground, the founding-era secrets of the U.S. Constitution — and ties it to a present-day conspiracy involving…

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