Miss Muriel Beale, the General Nursing Council’s inspector of Nurse Training Schools, arrives at Nightingale House, a forbidding red-brick Victorian edifice. She is here to observe the third-year students’ first teaching-session of the day, but instead she faces a murder. Authorities initially called the death a suicide, or a prank gone wrong.
Someone had substituted a cream-looking disinfectant for the warm milk used in a teaching session on feeding a patient by intragastric tube. Nurse Heather Pearce, the student subject, died a painful death. Sixteen days later, Josephine Fallon, the intended target of the deadly teaching session who had been excused that day because of influenza, is poisoned in her room after a quiet evening watching television. Again, the tightknit community would like to believe her death was a suicide, not a murder.
School surgeon-consultant Dr. Courtney-Briggs repeatedly troubles local police about the murders, so they call in an inspector, Adam Dalgliesh, and his team from Scotland Yard. Dalgliesh’s method is to establish a work space in situ and begin interviewing witnesses, listening for lies, discovering relationships and discrepancies, checking motives and opportunity, and paying careful attention to time. A meticulous search uncovers the bottle of disinfectant that killed Nurse Pearce; it was found in the bushes near the nurses’s apartments.
Police then discover that Sister Ethel Brumfett, present at neither death, had been called out the evening of the second death to help Courtney-Briggs with emergency surgery. When she returned, the Burt twins were talking about taking Fallon some hot chocolate because her bedside light was on; they decided not to do so.
Courtney-Briggs remains reticent and actually misleads the police, claiming he had left the building immediately after surgery and had put a white scarf on a fallen tree to warn other pedestrians. Police also find out that Sister Mavis Gearing had invited...
(The entire section is 815 words.)