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? Suddenly Valentine has information that everybody wants and he finds himself the quarry in a pitiless chase ..."@en
"A seemingly simple task throws up deadly questions with no immediate answers for Jack Valentine. What were American Special Forces doing in Ireland twenty-five years ago? What is the thread that leads from a deserted mountainside to the offices of the White House? As Valentine draws an old flame and an old friend into his dangerous, pitiless chase, he no longer knows what threatens him most. A dark alliance of men want to kill him for information and he is forced to undertake a terrible storm crossing in a battered, converted trawler - even his own cynicism seems to be dangerous."