De Potter's Grand tour

"In 1905, a tourist agent and amateur antiques collector named Armand de Potter mysteriously disappeared off the coast of Greece. His body is never recovered and his wife is left to manage his affairs on her own. But as she starts to piece together his life, she realizes that everything was not as he had said. Infused with details from letters and diary entries, the [book] twists forward and backward through time, revealing a lost world of fake identities, underground antiques networks, and a husband who wasn't what he seemed"--Amazon.com.