More even than space travel, the Stileman Process had altered twenty-first century life.

The most complex of medical miracles, it ensured that every ten years or so, the ailing aging body could be restored to youthful vigour and health.

There was a catch of course. The cost. Every ten years or so you have to come up with £1,000,000 minimum or die.

For Dallas Barr, one of the oldest men on earth, it was that time again. It was while he was casting around for that vital next million that he came across Maria, a woman from - literally - a previous life. And made two major discoveries.

Not all Stileman ''immortals'' were born - or created - the same. And someone is trying to kill them. All of them.