In a journey across the southern Indian state of Tamil Nadu, Sona Datta traces the development of the Hindu religion from its origins as an amalgamation of local faith traditions to its dominant position today. She uncovers this fascinating tale by looking at the buildings in which the faith evolved, moving from the caves and rock temples on the shores of the Bay of Bengal at Mahabalipurem, through the monolithic stone temple at Tanjavur to the vast complex of ornately carved towers, tanks and courtyards at Madurai, where every evening the god Shiva processes around the precincts to visit the bedchamber of his partner Parvati.