Ten concentration camps. Ten different places where you are starved, tortured, and worked mercilessly. It's something no one could imagine surviving. But it is what Yanek Gruener has to face. As a Jewish boy in 1930s Poland, Yanek is at the mercy of the Nazis, who have taken over. Everything he has and everyone he loves have been snatched brutally from him. And then Yanek himself is taken prisoner - his arm tattooed with the words Prisoner B-3087.

D-Day, June 6, 1944: the most expansive military endeavor in history. No less than world cooperation would bring down Hitler and the Axis powers. And so people - and kids - across the globe lent their part. From the young US soldiers in the boats to spies in the French countryside, the coordination of thousands came together. Alan Gratz, author of the New York Times best-selling Refugee, explores the necessity of teamwork and heroism in dismantling tyranny in this epic, yet personal, look at D-Day in time for the 75th anniversary of the operation.

It's 1944 and the world is at war. Hideki lives peacefully with his family on the island of Okinawa, near Japan. Until the day WWII reaches their door. Hideki is drafted into the "Blood and Iron Imperial Corps" to fight for the Japanese army. He is handed two grenades and a set of instructions: go off into the jungle, and don't come back until you've killed an American soldier. Meanwhile, young American soldier Ray Majors has just landed on the beach in Okinawa. He doesn't know what to expect, or if he'll make it out alive, but he knows he must keep moving forward.

Akira is riding her horse in the California woods when a wildfire sparks and grows scarily fast. Owen and George like spotting polar bears on the snowy Canadian tundra. But when one bear gets too close for comfort, do the boys have any chance of surviving? Natalie hunkers down at home as a hurricane barrels toward Miami. When the floodwaters crash into her house, Natalie is dragged out into the storm—with nowhere to hide. All four are swept up in the devastating effects of climate change. They are also connected in ways that will shock them—and could alter their destinies forever.

September 11, 2001, New York City: Brandon is visiting his dad at work, on the 107th floor of the World Trade Center. Out of nowhere, an airplane slams into the tower, creating a fiery nightmare of terror and confusion. And Brandon is in the middle of it all. Can he survive - and escape? September 11, 2020, Afghanistan: Reshmina has grown up in the shadow of war, but she dreams of peace and progress. When a battle erupts in her village, Reshmina stumbles upon a wounded American soldier named Taz. Should she help Taz - and put herself and her family in mortal danger?