Mohenjo-Daro was one of two prominent cities of the ancient Indus Valley ... when archaeologists began discovering their long-lost secrets. Little by little, their elusive stories are emerging.

In the late 18th century, Henry Creighton, a Scotsman assigned to an indigo factory in Malda, Bengal, stumbled upon the ruins of the lost city of ... the remains of two cities, Gaur and Pandua.