From National Book Award�winning author Martin W. Sandler, here is a fascinating look at what shipwrecks reveal about our world's past�and how exploring them led to the development of a whole new field of science: marine archaeology. Most of the world's ocean floor remains to be discovered. In fact, it's estimated to be home to over 3 million sunken vessels and countless treasures of the past. This enthralling and adventure-filled nonfiction book for young readers recounts some of the most captivating shipwrecks from history, ranging from the Shinan, a Chinese merchant ship laden with riches from the 14th century, to the the HMS Erebus and Terror, two polar exploration ships that mysteriously disappeared in the early 1800s. Combining new research, stunning archival material, and vivid storytelling, Shipwrecked! dives deep into the world of marine archaeology and shows young readers what each discovery reveals about the world before our time.