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The Echo Protocol

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She walked away from profiling murderers. Now one is playing games only she can solve.

Years after a botched case drove her into seclusion, former criminal profiler Elise Hartmann lives a quiet life designing logic puzzles—until a mysterious package arrives. a puzzle only she could decipher and a photograph that should not exist. The child Elise failed to save… may still be alive.

Drawn back into a dangerous web of secrets, Elise discovers a series of cryptic clues, each tied to a new disappearance—and a shadowy organization known only as Echo. The deeper she digs, the more disturbing the truth this isn't revenge. It's a recruitment.

With her own mind unraveling and no one she can trust, Elise must confront her buried past, outthink a brilliant adversary, and survive a deadly game designed just for her.

355 pages, Kindle Edition

Published June 7, 2025

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