The Blackmail Code

by C.K. O'Donnell

323 pages, Kindle Edition

Published July 1, 2026

About the author

C. K. O’Donnell is the author of The Port Allegiance Chronicles, the mystery/thriller series that includes Tetherless and The Blackmail Code. When she’s not crafting dark twists and layered characters, she enjoys thrift store hunting, camping, hiking, and exploring the quiet back roads of North Idaho where she lives with her husband and two rescue cats, Tiggy and Tiba.