Chapter 6 David Devlin walked briskly down the GCHQ corridor at Oakley in the depths of the iconic green building that had been a landmark in Cheltenham for decades. He passed the main offices of M block, where hundreds of employees sat at their cubicles, all focused on their own tasks. His newly shined black shoes clicking on the polished surface, a leather briefcase, containing the report that had turned his day upside down, in hand. This was red alert time of the highest order. Options swirled through his mind but he tried to dismiss them to focus on the simple facts that he was about to spill at the meeting. He reached the door at the end and swiped a card that activated a green light on the control console, followed by a click on the huge door lock. The door slid open to the operati