Mizuki is a Japanese teenager who is worried about her grandfather. Her grandfather is clearly desperately upset about something. He begins to tell Mizuki that he has never been able to forget a terrible incident that happened in his past...1945, Hiroshima. What follows is a searing account of the blinding flash, the harrowing search for family and the devastation both human and physical. 13+ A powerful novel that, despite its harrowing subject matter, has hope at its heart.