Ordeal by Innocence (Agatha Christie)

Evidence that clears the name of a boy sentenced for killing his adopted mother arrives too late to save his life - so who did kill her?

According to the courts, Jacko Argyle bludgeoned his mother to death with a poker. The sentence was life imprisonment

But when Dr Arthur Calgary turns up a year later with the proof that confirms Jacko's innocence, he is too late - Jacko died behind bars from a bout of pneumonia.

Worse still, the doctor's revelations re-open old wounds in the family, increasing the likelihood that the real murderer will strike again...

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.