Friends in High Places by Marne Davis Kellogg

Former jewel thief Kick Keswick is enjoying retirement in Provence when she hears that the auction house she used to work for, Ballantine and Company, is in financial trouble. It has become public knowledge that Ballantine was selling fake jewels--jewels that Kick had made and substituted for ones she had stolen. Not wanting her secret exposed, Kick realizes she must go back to Ballantine to find out what is going on. This leads Kick on a journey to the Italian Alps, going undercover for a long weekend at a high-class wedding where she uncovers the truth and a murderer. This is the fourth book in the Kick Keswick series and all are equally enjoyable. Kellogg brings the reader up to date on Kick's background in each book, so it's easy to start anywhere. I like Kick's view on life, she doesn't take herself too seriously (as a colleague pointed out). I think that's one of the great appeals. The books have a very light and humorous style and Kellogg knows how to write about the upper crust lifestyle without making it seem trashy. I LOVE this series. A sure bet.