The Sirens of Surrentum (The Roman Mysteries)

Summer AD 80. Flavia and her friends receive an invitation to stay at the luxurious Villa Limona in Surrentum, where their friend Pulchra has a mystery she desperately wants them to solve. After a year of hardship and disasters, people are in cheerful spirits—there is even talk of love and romance. But it seems one of the guests has murder in mind. Can Flavia and her friends track down the would-be poisoner before it's too late?