The Black Key - Dead man's violin: A Kate Mercer Thriller Collection - Vol 1-4

By James Hutchinson

Four deadly missions. One relentless spy.

The Black Key: Volume One collects the first four pulse-pounding adventures of Kate Mercer - a rogue ex-MI6 agent racing across Europe to stop encrypted music, weaponized memory, and shadowy power brokers from triggering global catastrophe.

From the flooded alleys of Venice to the crumbling towers of Prague, Mercer battles assassins, double agents, and a mysterious cyber-arms dealer known only as The Bellman. But the deeper she digs, the clearer it becomes: she's not just chasing ghosts. She's part of the symphony.

Featuring:

Dead Man's Violin - A murdered informant. A concerto that kills.

The Lisbon Cipher - A Cold War song that awakens submerged nukes.

The Dubrovnik Protocol - A defector wired to blow, and the leak of a lifetime.

The Prague Labyrinth - A mind-encoded virus. A final move. A trap.

Perfect for fans of Jason Bourne, Killing Eve, and John le Carr , The Black Key delivers high-stakes espionage with a haunting musical twist.

In a world built on secrets, the only weapon left... is memory.

• Format: Paperback
• Language: English
• ISBN: B0G6KRZQRT
• ISBN13: 9798278401674
• Release Date: December 2025
• Publisher: Independently Published
• Length: 34 Pages
• Weight: 0.13 lbs.
• Dimensions: 0.1" x 6.0" x 9.0"