The brash heroine Claudia Seferius has to escape Rome for yet another shady dealing, and ends up in the resort town of Atlantis were a convenient tie-in with many other characters and crimes occurs. There is more of the Claudia/Marcus story as well.
This is the third book in the series that I have read (although this is the fifth in the series), and although they are very readable and the mysteries are alright, they are lacking something. The settings are just not quite authentic enough, and the way that all the characters and stories comes together is a little contrived. I think that the worst thing about these books, though, is the names and the covers. It really does look as if you are reading something seedy, although they are just light-hearted on the inside and consequently not as bad as they look. If you don't mind this, and are looking for a superficial romp, then this will do the job nicely.