Stathis G. Hatzis was the head diver among Symi's and the Dodecanese's hundreds of free divers - sponge divers in the early 20th century. In 1913, he dived to a depth of 88 meters, for 4 minutes, in his attempt to locate and tie the anchor of the Italian battleship Regina Margherita which had been lost on the ocean floor. The book is the biography of Stathis Hatzis and follows Stathi in his three day adventure to find and secure the lost anchor, making a total of 16 record free dives from 50 to 88 meters depth. Stathis Hatzis' unique accomplishment was representative of the incredible abilities of this humble sponge diver, as well as his generation's, the last free divers - sponge divers, diving with the kampanelopetra, who disappeared along with a unique in the world tradition, which had endured uninterrupted until then, since the depths of antiquity. In the pages of this book, the adventures and legendary dives of Stathis Hatzis become the reason to chronicle the entire history of free diving in Greece, from its origins in ancient times to the late 20th century. Rare photos and documents reveal the achievements of an island population consisting of thousands of free divers and their families, who, with Symi and the Dodecanese as an epicentre, achieved greatness in the Aegean for centuries, thanks to the precious sponges gathered from the depths of the Mediterranean and traded in the markets of Europe and America.