The Sirius Crossing

"Jack Valentine has been in the intelligence game too long and it is starting to show, but he accepts one more mission. He always does. It seems like a simple task but it throws up deadly questions and he doesn't know the answers. What were American Special Forces doing in Ireland twenty-five years ago and why does it matter now? What is the thread which leads from a deserted mountainside to the offices of the White House? Valentine no longer knows which threatens him most - the dark alliance of men who want to kill him or his own dangerous cynicism." -back cover.