Nautilus

The follow-up to the bestselling novel The Turing Protocol.

Nautilus is a machine with the astonishing power to send messages eight weeks back in time. Its users must follow a set of protocols established by its inventor, Alan Turing, including that it can only be used by a descendant of his family, and only to avert global disasters.

But what would happen if it fell into the wrong hands? The machine is in the custody of Turing's granddaughter, Annabelle, but she's unaware that her husband, E...