Elizabeth Bell runs a quiet household, with no family and no more than the usual number of servants. She passes her time thinking about crime and working on her biography of a relative. When a young cousin comes to stay, life in the house becomes uncharacteristically lively. First, cousin Judy burns a hole in Miss Bell's desk. Next, they spy a burglar on the staircase--a shadowy figure who vanishes without a trace. And finally, Sarah, the nurse, takes...