Tomorrow should be the greatest day of Erica Stroud-Jones' life. In just 24 hours this brilliant young scientist will present her secret work to a conference in Amsterdam - research that promises to revolutionise the battle against a deadly tropical disease. Millions of lives could be saved; a Nobel Prize beckons.

Arriving to watch her are sceptics and rivals, admirers and enemies. Erica's own eyes will be on sculptor Max Carver, her American new love, to whom she will dedicate her achievement.

Tomorrow never comes.

Erica vanishes during the night. Max, desperate, terrified, sets out to find her, descending into an underworld full of malice and cunning. But even he is shocked by the dark terror he finds in the heart of the woman he loves.

Discover the massive number-one best seller that thousands of readers have said is the most addictive, page-turning novel of the year.