threat . . . A young foreign service officer has received a baffling text from an anonymous source. Too late, she realizes it was a hastily coded warning. Then a series of bus bombs devastate Europe, heralding the rise of a new rogue terrorist organisation who will stop at nothing in their efforts to develop their own nuclear arsenal. As Ellen unravels the damaging effects of the former presidency on international politics, she must also contemplate the unthinkable: that the last president of the United States was more than just an ineffectual leader. Was he also a traitor to his country? From the number one bestselling authors Hillary Clinton and Louise Penny comes a novel of unsurpassed thrills and incomparable insider expertise.