Unlock the secrets of the past and the dangers of the future with Calla Cress in the Decrypter series.

The Calla Cress Decrypter Series is an action-packed thrill ride that will keep you on the edge of your seat. The first omnibus edition of the bestselling series features the first, second, and third novels in the series, featuring the dynamic and resourceful protagonist, Calla Cress.

Book 1: In Secret of the Lost Manuscript, Calla must use her wits to decode a riddle and retrieve a highly guarded and undecipherable document that vanished in Berlin before it's too late.

Book 2: In The Mind Hacker, Calla is kidnapped and must find a missing MI6 agent to disarm a series of hacks.

Book 3: In Digital Eyes Only, Calla is called upon to decrypt a mysterious cipher left in the Prime Minister's home after his private accounts have been compromised.

Each book in this series is a standalone novel, but the series is best enjoyed in order. The books in this series are fast-paced, action-adventures steeped in history, espionage, and cyber defense in an increasingly digitally dependent world. They explore a world where technology and science are at the forefront of humanity.

Enter a world of espionage and danger in this page-turner that fans of Scott Mariani, Steve Berry, Jason Bourne, Ernest Dempsey, and Clive Cussler will not be able to resist.