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Secret File

Secret File

3 books
Ongoing series

About this series

The "Secret File" series follows an unnamed British spy through a world of Cold War espionage and international intrigue. These thrillers offer a gritty look at spycraft, focusing on complex operations and the moral ambiguities faced by agents.

Books

Book cover of The Ipcress File
#1

The Ipcress File

Len Deighton

Secret File #1
Book cover of Horse under water
#2

Horse under water

Len Deighton

Secret File #2
Book cover of Billion-dollar brain
#4

Billion-dollar brain

Len Deighton

Secret File #4

About the author

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Frequently asked questions

  • What is the correct reading order for the Secret File series?

    The books in the Secret File series, featuring agent Harry Palmer, are best read in publication order to follow the character's development and the overarching narrative. This begins with The Ipcress File, followed by Horse Under Water, and then Billion-Dollar Brain.

  • Are there film adaptations of the Secret File books?

    Several books in the Secret File series were adapted into popular films starring Michael Caine as Harry Palmer. These adaptations often took liberties with the source material but captured the espionage thriller essence.