A year after the battle of Waterloo, dispatches from India warn that a local Maharaja is threatening British interests. Wellington sends Sharpe to investigate on what turns out to be his most dangerous mission to date. The last scout sent, Sharpe´s best friend Sergeant Harper -- has gone missing and reports suggests that the real power behind the risings is Colonel Dodd, a malcontent East India Company Officer, and that the Maharaja has gathered into his impregnable fort. Once inside the fort things do not quite go as Sharpe has planned.