From the Publisher:
The latest intallment in the republication of Marsh's 32-novel mystery collection, "When in Rome" follows a motley crew of tourists on an exclusive guided tour of Rome's ancient ruins. In the serpentine passages of an underground crypt, the shady tour guide disappears, a mysterious murder occurs, and Inspector Roderick Alleyn goes to work.
Ngaio Marsh: When in Rome. St. Martin's Press; ISBN: 0312970978 (September, 1999); 242 p., $5.99