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Hardcastle Series in Order: 16 books

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Hardcastle's Conspiracy Graham Ison Book - 1
2005

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Hardcastle's Actress Graham Ison Book - 2
Aug-2007

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Hardcastle's Airmen Graham Ison Book - 3
Jul-2006

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Hardcastle's Burglar Graham Ison Book - 4
Jul-2008

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Hardcastle's Spy Graham Ison Book - 5
2004

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Hardcastle's Obsession Graham Ison Book - 6
Sep-2011

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Hardcastle's Traitors Graham Ison Book - 7
Nov-2013

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Hardcastle's Mandarin Graham Ison Book - 8
May-2009

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Hardcastle's Soldiers Graham Ison Book - 9
Apr-2010

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Hardcastle's Frustration Graham Ison Book - 10
Aug-2012

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Hardcastle's Quartet Graham Ison Book - 11
Nov-2014

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Hardcastle's Armistice Graham Ison Book - 12
2004

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Hardcastle's Collector Graham Ison Book - 13
Feb-2016

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Hardcastle's Runaway Graham Ison Book - 14
Jun-2017

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Hardcastle's Quandary Graham Ison Book - 15
Jun-2020

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Hardcastle's Secret Agent Graham Ison Book - 16
Jan-2021

Books in this series fall into the following genres

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Frequently Asked Questions (FAQ)

There are 16 books in the Hardcastle series.

The Hardcastle series does not have a new book coming out soon. The latest book, Hardcastle's Secret Agent (Book 16), was published in January 2021.

The first book in the Hardcastle series, Hardcastle's Conspiracy, was published in January 2005.

The Hardcastle series primarily falls into the Historical Mystery genre.

Top Series in Historical Mystery

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