The Poppy War by R F Kuang

A brilliantly imaginative epic fantasy debut, inspired by the bloody history of China’s twentieth century and filled with treachery and magic. When Rin aced the Keju – the test to find the most talented students in the Empire – it was a shock to everyone: to the test officials, who couldn’t believe a war orphan from Rooster Province could pass without cheating; to Rin’s guardians, who had hoped to get rich by marrying her off; and to Rin herself, who realized she was finally free from a life of servitude. That she got into Sinegard – the most elite military school in Nikan – was even more surprising.