An ancient Egyptian stone stele unearthed a decade ago should have, under Egyptian law, “been turned over to the government, a recovered shard of the national patrimony. Instead, something considerably more commonplace happened. It became an outlaw. Quietly, it passed into the global antiquities market. Five years later, cleansed of its illicit origins, it emerged in New York as a rich man’s prize, in the foyer of a Fifth Avenue apartment.”