In The Search for the Codex Cardona, Arnold J. Bauer tells the story of his experiences on the trail of a cultural treasure, a Mexican "painted book" that first came into public view at Sotheby's auction house in London in 1982, nearly 400 years after it was presumably made by Mexican artists and scribes. On folios of amate paper, the Codex includes two oversized maps and 300 painted illustrations accompanied by text in 16-century paleography. The Codex relates the trajectory of the Nahua people to the founding of the capital of Tenochtitln and then focuses on the consequences of the Spanish conquest up to the 1550s. If authentic, the Codex Cardona is an invaluable record of early Mexico. Yet there is no clear evidence of its origin, what happened to it after 1560, or even where it is today, after its last known appearance at Christie's auction house in New York in 1998.