The Cahill Files is a series of two books and 4 e-books. Clifford Riley is the author of all the books.
Books and E-books
- Book 1. Operation Trinity (May 8, 2012)
- Book 2. Spymasters (May 1, 2013)
- E-book 3. The Houdini Escape (August 7, 2012)
- E-book 4. Silent Night (December 25, 2012)
'Warning' Letter by Clifford Riley
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