Bahawalpur, The Kingdom that Vanished by Anabel Loyd, tells us the story of Bahawalpur, the biggest princely state to join Pakistan after India's partition, and the struggle of Salahuddin Abbasi, amir of Bahawalpur, to restore the provincial status of Bahawalpur, which was promised by Muhammad Ali Jinnah to the last ruling Nawab of Bahawalpur, Sadiq Muhammad Khan V. Amongst the 565 princely states of undivided India, Hyderabad, Kashmir, Mysore, Gwalior, and Baroda were twenty-one-gun salute states; Bahawalpur, a seventeen-gun-salute state, was ruled by the Abbasi family, who claim descent from the Abbasid caliphs of Cairo and Baghdad to Al Abbas Ibn Abdul al Muttalib, uncle of Prophet Muhammad. The book is meant for serious history readers.