'Don't come after us ... remember the first thing I ever taught you - that your first duty is to stay alive' For some time now, Zack Darke has been operating solo, in total secrecy, for a shadowy government organisation. When his handlers are abducted by somebody with a serious personal vendetta against him, Zak has no choice but to go after them. And heading across the world to find them - into danger like he's never known - is something that, this time, he cannot do alone . . .

 

This book is part of a book series called Agent 21 .

There are 368 pages in this book. This book was published 2016 by Random House Children's Publishers UK .

He has also appeared in a number of TV programmes, including HUNTING CHRIS RYAN, PUSHED TO THE LIMIT (Toughest Families) and TERROR ALERT (Sky TV, 2004).