The Helen Dillon thrillers follow a gifted cyber specialist whose work draws her into conspiracies involving covert operations, AI, financial crimes, corruption, and the manipulation of truth.

Helen can penetrate protected systems and identify digital patterns invisible to almost anyone else. Her most dangerous adversary, however, understands human vulnerabilities better than computers: Andreas Gershwiller, her ruthless criminal mastermind uncle.

Across the series, Helen helps women caught in crises that powerful institutions would prefer to conceal. Each novel introduces a new central protagonist and mystery while continuing Helen’s battle against Andreas and the networks he controls.

Meet Helen

Helen can break into almost any system. Trusting the people around her is far more difficult.

Brilliant, guarded, and intensely private, Helen is a cyber specialist capable of finding patterns, vulnerabilities, and hidden connections in vast networks of information. She is at her best when the problem appears impossible and conventional methods have failed.

Helen’s reserve is not coldness. It is armor forged by grief, betrayal, and years spent anticipating the next move of Andreas Gershwiller, the uncle who once influenced her life and now considers her both his greatest disappointment and his most worthy opponent.

Behind Helen’s formidable intellect lies fierce loyalty. She repeatedly risks herself to protect people caught in systems more powerful than they are. Her humor is dry, her patience limited, and her moral compass stronger than she sometimes admits.

Helen does not need to be the most visible person in the room.

She needs to be the one who understands what is really happening.

Helen is a lead character in her eponymous series and is also prominently featured in the Alex Demarchelier series, starting with The Deal, in which she plays a crucial role.

Click here to meet more characters

Thrillers in the Helen Dillon series:

Meet the author