See Delphi And Die: (Falco 17)

Her New Bestseller

With safe seas, good roads, and provinces rich in heritage sites, Marcus Didius Falco’s fellow countrymen have become voracious tourists. Greece, home of the ancient Olympic Games, is a favourite destination for Seven Sights Travel, a seedy company which provides escorted tours for wealthy travellers.
Falco and Helena hear that a young girl and a newly-wed woman, both Roman visitors, have been murdered at Olympia; the authorities will not investigate properly, so Falco steps in. After making himself unwelcome at the hidebound sanctuary, he soon finds himself up against Seven Sights, its absentee tour-guide and its mixed bunch of customers, some of whom have things to hide.
The search for culture is far from genteel - and it can be very dangerous. Both the bridegroom and Helena’s brother go missing in the birthplace of myth, as Falco and Helena struggle with a case that may contain worse features than any they have dealt with yet…