A personal advertisement written in code attracts the attention of Tuppence Beresford. When Tuppence suspects that the code involves the Three Arts Ball, she persuades Tommy to attend dressed in costume. Tuppence’s suspicions prove to be correct when a murder takes place, but as all of the guests are dressed in masquerade, identifying the killer may be more difficult than first thought...
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 100 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.