Death in Oslo - Anne Holt

When Helen Barclay becomes the first female US president, the whole world takes notice. And unfortunately for President Barclay, one man takes very particular notice. He knows her dark secret, buried for over twenty years. And not only does he have the power to destroy everything she's worked for, but he also has the ultimate motive. Revenge.
Unfortunately for the FBI and the Norwegian police, nobody knows about this when Helen Barclay chooses to visit Norway for her first state visit. But when she goes missing from a locked, heavily secured bedroom, they are forced - unwillingly - to work together to find her. Has she been kidnapped? Murdered? Can the US president really just disappear into thin air...?
Taut, gripping and chillingly convincing, Death in Oslo is a brilliant new thriller from one of the world's most popular crime writers.