Showing Death is a Cabaret by Deborah Morgan

Since Jeff Talbot left the FBI, he's been investigating yard sales as a professional antiques picker. From furniture to books, from old clothes to broken toys, nothing escapes his keen eye for appraisal. But there is one item that he always keeps his knowing eyes particularly peeled to find: a one-of-a-kind French cabaret set commissioned by Napoleon for his love, Josephine. It is an item any collector would kill for...

So when it's about to be auctioned off — and rival collectors start turning up dead — there are plenty of suspects to choose from. Suddenly Jeff finds himself polishing up his old crime-solving skills as the search for a cabaret set becomes the search for a killer. But can he pick out the right clues before the killer adds him to the collection of dead bodies?