In Renaissance Venice, a manuscript in an unknown language was left in a confessional booth in Saint Marks’ Basillica. No one has cracked the code in centuries. Nearly eight hundred years later, ISTF, a covert government organization, is about to decrypt the manuscript’s explosive secret.

London, the present. When her parents left her in a foster home as an infant, something in Calla Cress broke. An expert in ancient symbols, and a master code breaker, Calla should consider herself lucky. Most twenty-eight-year-olds don’t land big dream jobs at the British Museum or decipher secret codes for the government. Now she’s asked to decipher a cryptic Renaissance manuscript at an international museum in Berlin.

When the manuscript is stolen, Calla, NSA agent Nash Shields and tech entrepreneur Jack Kleve race to decode the mystery of its origin—before it’s too late. Calla uncovers an ancient secret and suspects that there’s more to her parents’ disappearance than meets the eye. Armed with clues to the manuscript’s true intent, what she discovers further puts her in the crosshairs of an enemy’s gunfire. At every turn, Calla is drawn deep into an ancient web of conspiracies and secrets that may have been dormant for centuries.

Ancient history meets cutting-edge high tech in an action-packed, smart thriller with a unique quest guaranteed to keep you guessing—and sticking with characters after you finish reading. If you like Steve Berry, James Bond with a dash of The Matrix you'll find this thriller hard to put down.

What readers are saying about The Decrypter Series and Calla Cress.

★★★★★ “An action-packed techno-thriller that reveals a dark future where hacking occurs at the speed of thought.”

★★★★★ “A fast-paced thriller with twists and turns that will hopefully keep you up well past your bedtime.”

★★★★★ “A story of technology, hacking, and codes.”

★★★★★ “In a race against time, Calla and her team must decipher history’s greatest anagram.”

★★★★★ “Delivers a thrilling mystery for fans of Dan Brown.”