The Serpent’s Tooth (Empire of the Moghul #5)

The fifth in a powerful and epic series of novels about the ruthless warrior emperors who ruled much of central Asia through the sixteenth and seventeenth centuries.
The Moghul emperors are still bloodthirsty and entirely ruthless; they control a quarter of the world’s population and have wealth beyond imagining. But this is the final flowering of a doomed empire and, while Shah Jahan mourns his dead wife and obsesses over the Taj Mahal, her monument, his son Aurangzeb is planning to take his father’s throne, by any means necessary.