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- Secret service — Fiction
Secret service — Fiction — Audiobooks
The Riddle of the Sands
by Erskine Childers
John Dene of Toronto: A Comedy of Whitehall
by Herbert George Jenkins
The Red Room
by William Le Queux
Affair in Araby
by Talbot Mundy
Direct methods
by Thomson Burtis
Walker of the Secret Service
by Melville Davisson Post
A Rogue by Compulsion: An Affair of the Secret Service
by Victor Bridges
The Return of Clubfoot
by Valentine Williams