About the book: 2002 / All these people lived in Mrs. Rubrick's house, and each of them would have had enough reasons to kill her: Douglas Grace and Fabian Loss - her nephews, who were conducting secret work on a new type of anti-aircraft projectile. Ursula Harm - Mrs. Rubrick's ward, in love with Fabian (a marriage with which her guardian fiercely opposed). Terence Lynn - Mrs. Rubrick's secretary, who was clearly admired by her husband ...Who really killed her??