Krishnanagar, Bengal. August 1942. A postmaster holds a letter he is ordered to report. He does not report it. That choice becomes a war of its own. When the British arrest every leader of the Indian independence movement overnight, the resistance has no headquarters, no open offices, and no safe way to communicate. It has only the postal system. And Arjun Bose, a thirty-eight-year-old postmaster in a small Bengal town, is the man who decides what the postal system does next. Working alone at first, then alongside a telephone exchange operator who has been quietly cataloguing German-accented voices for months, a Calcutta central sorter who controls the flow of eighty thousand letters a day, and a telegraph office clerk who can read the shape of British intelligence operations from the traffic patterns on the wire, Arjun builds something that has no name and leaves no paper trail. A network of ordinary postal workers who redirect the letters that a dying empire has ordered them to suppress. But the Bengal Famine of 1943 is killing two to three million people, and the same mail that carries independence movement correspondence also carries the denial letters of a colonial food relief system that is failing on a catastrophic scale. Arjun's network must decide what it is truly for, and what its members are willing to risk to be it. Drawn from the records of the India Office at the British Library, the archival collections of the Nehru Memorial Museum and Library in New Delhi, and the economic scholarship of Nobel laureate Amartya Sen, The Monsoon Letters is a novel about the moral weight of ordinary work. About what a letter is. About what it costs to make sure it arrives. Deeply moving and precisely researched, perfect for readers of Rohinton Mistry's A Fine Balance, Amitav Ghosh's The Hungry Tide, and Elif Shafak's The Island of Missing Trees.