[en] [Gutenberg 48823] • Spies and Secret Service / The story of espionage, its main systems and chief exponents

[en] [Thomas Bladen 02] • Line of Sight Joffe Books Spy Thriller Books and Mystery

[en] [Thomas Bladen 04] • Shadow State Joffe Books Spy Thriller Books and Mystery

[en] [Paddy Meehan 03] • Slip of the Knife Little Brown and Company

[en] [The Peri Reed Chronicles 01] • The Drafter Simon and Schuster

[en] [Grace-by-the-Sea 05] • The Lady's Second-Chance Suitor Edwards and Williams

[en] Never Borrow a Baronet (Fortune's Brides Book 2) Edwards and Williams

[en] [Mike Ford 02] • The Directive Little, Brown and Company

[en] [Grace-by-the-Sea 04] • The Governess's Earl Edwards and Williams

[en] [Fortune's Brides 03] • Never Envy an Earl Edwards and Williams

[en] [Grace-by-the-Sea 03] • The Artist's Healer Edwards and Williams

[en] [The Killing of Historical Figures 01] • Killing Patton The Strange Death of World War II's Most Audacious General Henry Holt and Co.

[en] [Gutenberg 21333] • Doom Castle Black and White Publishing

[en] [Bill O'Reilly's Killing Series 01] • Killing Patton Henry Holt and Co.

[en] [Dan Taylor 03] • Three Lives Down Saxon Publishing

[en] Spy · the Inside Story of How the FBI's Robert Hanssen Betrayed America Random House Trade Paperbacks

[en] [Elemental Steampunk Chronicles 02] • The Silver Skull Anne Renwick

[eng] Spy in the House of Fitzwalter D. Cullen Nolan

[en] [Elemental Steampunk Chronicles 03] • The Iron Fin Anne Renwick

[en] [Elemental Steampunk Chronicles 01] • The Golden Spider Anne Renwick