What Happened on Thursday? exposes the profound cost war has on a family. The Nigerian Civil War began on a Thursday and ended on a Thursday two and a half years later. The book narrates the war's effect on one family whose home was in ruins after "thunder." They traveled across the war-torn country and finally came to a place of safety – a refugee camp. The young boy describes the effects two years of running from the war has had on them. The children have swollen bellies, and people are weak and sick. But through it all, the boy's family have had love for each other to help keep them going. This is a serious but important book. It is gentle enough for young children but shows the horrible effects wars have on ordinary people not involved in the conflict. The back of the book has information about the Nigerian Civil War and an emotional Author's Note advocating for peace. Thank you to NetGalley and Delacorte Press. I voluntarily read and reviewed an advance copy of this book provided by Delacorte Press via NetGalley. All thoughts and opinions are my own. ( )