T.H. White complained that the characters in Walter Scott’s historical novels talked ‘like imitation warming pans’: those in Amitav Ghosh’s Ibis trilogy, of which Flood of Fire is the final volume, talk like a whole Benares brass bazaar.

As an avid reader of both Hobson-Jobson (the dictionary of Anglo-Indian slang) and Patrick O’Brian, I thought that the trilogy, set in the First Opium War, would combine the delights of both.