Black Coffee (Agatha Christie)

The inventor of a powerful new explosive,Sir Claud Amory, is somewhat disconcerted when the chemical formula goes missing - the situation worsened by the knowledge that the thief is one of Sir Claud's house-guests. A relative? Or a 'friend'?

Whoever the culprit, Sir Claud decides to give them a sporting chance - which is more than someone gives him. As the doors are locked and the lights turned off, rather than return the formula, one of the guests adds something to their host's coffee . . .

Adapted as a novel by Charles Osborne

Agatha Christie is known throughout the world as the Queen of Crime. Her books have sold over a billion copies in English with another billion in over 70 foreign languages. She is the most widely published author of all time and in any language, outsold only by the Bible and Shakespeare. She is the author of 80 crime novels and short story collections, 20 plays, and six novels written under the name of Mary Westmacott.

Charles Osborne was born in Brisbane in 1927. He is known internationally as an authority on opera, though has had a lifelong passion for Agatha Christie's works. His previous books include The Life and Crimes of Agatha Christie.