Immortality - the ultimate secret. David and Laura Callahan, like others before them throughout the ages, will stop at nothing in their perverted quest for it. But for Callahan, a multi-millionaire gun-runner, eternal life has never looked less likely: he is being hunted by two British counter-terrorists. And nobody knows who hired the killers - or why... In a race against time, a trail of violence and terror leads from a desecrated church in France, to London, and on to strife-torn Ireland where modern terrorism battles against ancient powers and a terrible secret is revealed. A long-forgotten secret that will threaten the lives of those involved. And when the final confrontation comes, the living will envy the dead...