The Turing Protocol by Nick Croydon

In the midst of World War II, Enigma codebreaker Alan Turing has created a machine named Nautilus that can send a message back into the recent past. After Turing uses it to help the Allied forces succeed on D-Day, he sees the power (and potential danger) of what he has created. He knows he can only entrust it to one person: Joan, the mother of his secret child.
Over the next seventy years, the Nautilus is passed down through the Turing family, who all must decide for themselves when to use this powerful invention. Will it save the world – or destroy it?

About the Author: Nick Croydon was born in Surrey, England, and is the CEO of QBD Books Australia. He has more than 25 years’ experience running international publishing companies and book retail businesses across the United Kingdom and Australia. The Turing Protocol is his debut novel. He lives in Brisbane with his Spanish wife, Esther, and their children.

29 Jul 2025
 

The Turing Protocol by Nick Croydon ISBN 9781923293991