When Challenger disintegrated 73 seconds into its flight on the morning of 28 January 1986, it represented one of the most shocking events in the history of American spaceflight. A Presidential Commission was immediately convened to explore what had gone wrong, but with the vast complexity of the space shuttle and so many vested interests involved in the investigation, discovering the truth presented an almost impossible challenge. A truly independent member of the investigation was Richard Feynman. One of the most accomplished scientists of his generation, he worked on the Manhattan Project building the first atom bomb and won the Nobel Prize for his breakthroughs in quantum physics. Feynman deployed exceptional integrity, charm and relentless scientific logic to investigate the secrets of the Shuttle disaster and in doing so, helped make the US Space Programme safer.

Edwardian child Enid Blyton begins to tell stories to her brothers as an escape from their parents' rows before the father deserts the family. Whilst training as a teacher after the Great War she sends her stories to publishers, one of whom, Hugh Pollock,takes her on and also marries her. They have two daughters but Enid is a terrible mother, letting a nanny rear them whilst she, ironically, bestows treats on anonymous children who worship her for her stories. She is completely self-absorbed,driving Hugh to drink and then to another woman. Enid uses the children as emotional blackmail to get a divorce on her terms before marrying Kenneth Waters, a weak man similar to her father. After World War Two she is as popular as ever, despite accusations of using a syndicate to pen her books and will carry on,adored by children who do not know her true nature, for another twenty years and her death in 1968.

In 1860 Scotland Yard's 'Prince of Sleuths' Jack Whicher is sent to rural Wiltshire to investigate the murder of three-year-old Saville Kent,snatched from his bed at night and killed.Saville's nurse Elizabeth Gough is a prime suspect but released for want of evidence though local Superintendant Foley is convinced it is an inside job. Foley gives his help grudgingly,disdainful of 'modern' methods,speculating that Saville woke to see Elizabeth with a lover,possibly Saville's father,an unpopular man. Part of a woman's torn garment is found,stained in blood,and Constance,Kent's sixteen-year-old daughter from his first marriage, claims she lost a night-gown. Dr. Stapleton,the family physician,tells Whicher that Constance,like her mother,is dangerously unstable and jealous of Saville. Both she and younger brother William hate their stepmother Mary,their former nanny,with whom Kent cuckolded their mother...