This months book is "She Who Became the Sun" by Shelley Parker-Chan.  In a famine-stricken village on a dusty yellow plain, two children are given two fates. A boy, greatness. A girl, nothingness…
In 1345, China lies under harsh Mongol rule. For the starving peasants of the Central Plains, greatness is something found only in stories. When the Zhu family’s eighth-born son, Zhu Chongba, is given a fate of greatness, everyone is mystified as to how it will come to pass. The fate of nothingness received by the family’s clever and capable second daughter, on the other hand, is only as expected.  When a bandit attack orphans the two children, though, it is Zhu Chongba who succumbs to despair and dies. 
After her sanctuary is destroyed for supporting the rebellion against Mongol rule, Zhu uses the chance to claim another future altogether: her brother's abandoned greatness.