This work is a revealing study of the enigmatic Indus civilization and how a rich repertoire of archaeological tools is being used to probe its puzzles. The Indus Valley gave rise to one of the most sophisticated civilizations of the Bronze Age, an extraordinarily peaceful society that developed everything from a complex political organization to sanitary plumbing to a rich mythology. Then it vanished, forgotten by history for centuries, until remarkable finds in the 1920s led to its rediscovery.