Destination unknown

"Agatha Christie is the most widely published author of all time and in any language. Now Collins has adapted her famous detective novels for English language learners. These carefully adapted versions are shorter with the language targeted at upper-intermediate learners (CEF level B2). Each reader includes: a CD with a reading of the adapted story; helpful notes on characters; cultural and historical notes relevant to the plot; a glossary of the more difficult words. Famous scientists from around the world are disappearing and nobody knows why. The one woman who can help uncover the truth is dying after a plane crash. How can they discover where the scientists are without her? Meanwhile, in a hotel room in Casablanca, Hilary Craven decides to end her life. But her suicide attempt is interrupted by a man who offers her an exciting alternative..."--Publisher's description.