Months after refusing to work with MI6 again, Alex Rider is drawn back into the world of espionage when an experimental cyber-weapon - known only as Shadow Protocol - goes missing after the lead scientist mysteriously vanishes from a secret research facility in Switzerland.
MI6's hands are tied. Officially, the British government has no jurisdiction. Unofficially, they need someone off the books. Someone untraceable. Someone they can deny.
They need Alex Rider.
But as Alex infiltrates an elite international school linked to the missing scientist's son, he uncovers a conspiracy that stretches beyond MI6 - involving a rogue intelligence faction, digital warfare, and someone who knows more about his past than even he does.
What begins as a missing person case becomes a countdown to global paralysis - and the weapon behind it may not be software, but something far more dangerous:
A new kind of spy.
DISCLAIMER: This story, "Shadow Protocol," is a fan-made work based on characters and settings created by Anthony Horowitz for the Alex Rider series. It is not authorized, sponsored, or endorsed by the official rights holders. All original characters, plot, and events are the creation of the author of this fanfiction.