As of last week, a postcard arrived from the port of Mombasa, Kenya. No return address. Just a smudged thumbprint and four words:

Two years later, Kincaid vanished again. This time, he was chasing the ghost of a lost library in the Kyzylkum Desert. Local historians told him the desert would kill him. The temperatures swing from 120°F during the day to near freezing at night. The sand vipers are aggressive. The water is poison.

A single, dried-out apricot seed, wrapped in a silk scrap with a poem written in Chagatai.