Ruta Sepetys returns to WWII in this epic novel, Salt to the Sea, which shines a light on one of the war's most devastating—yet unknown—tragedies. World War II is drawing to a close in East Prussia, and thousands of refugees are on a desperate trek toward freedom, many with something to hide.

Among them are Joana, Emilia, and Florian, whose paths converge en route to the ship that promises salvation, the Wilhelm Gustloff. Forced by circumstance to unite, the three find their strength, courage, and trust in each other tested with each step closer to safety. Just when it seems freedom is within their grasp, tragedy strikes. Not country, nor culture, nor status matter as all ten thousand people—adults and children alike—aboard must fight for the same thing: survival.

Told in alternating points of view, this masterful work of historical fiction is inspired by the real-life tragedy that was the sinking of the Wilhelm Gustloff—the greatest maritime disaster in history. As she did in Between Shades of Gray, Sepetys unearths a shockingly little-known casualty of a gruesome war, and proves that humanity and love can prevail, even in the darkest of hours.