I knew about the royal family of Oudh, of course. They were one of the city’s great mysteries. Their story was passed between tea sellers and rickshaw drivers and shopkeepers in Old Delhi: In a forest, they said, in a palace cut off from the city that surrounds it, lived a prince, a princess and a queen, said to be the last of a storied Shiite Muslim royal line.

There were different versions, depending on whom you spoke to. Some people said the Oudh family had been there since the British had annexed their kingdom, in 1856, and that the forest had grown up around the palace, engulfing it. Some said they were a family of jinns, the supernatural beings of Arabian folklore.