Julian "Tusker" Tusk, an American archaeologist, is excavating a shipwreck half a world from home when a research boat catches fire and sinks, killing an old friend. The tragedy sets in motion a dangerous quest for truth that pulls Tusker into a sinister plot spanning 75 years, from World War II Ceylon to modern day Sri Lanka. Along the way, he matches wits with a psychopathic mercenary, discovers a long lost ship with an explosive secret, and falls for a beautiful marine biologist who is at least as strong as he is. In the end, Tusker finds that the truth may lie at the bottom of the sea, with only one way back to the surface.Depth Charge is an old school thriller in the tradition of Fleming, Maclean, and Cussler, with an eye for detail, cunning villains, and narrow escapes. The story is full of wartime secrets, the intersection of religion and politics, and the arcane world of deep technical diving. It takes readers from the smoky halls of 1940s London to the volatile, seductive heat of Sri Lanka and sixty fathoms under the Indian Ocean. Try not to hold your breath.

The history of weapons and warfare is usually written from the point of view of the battles fought and the tactics used. In naval warfare, in particular, the story of how these weapons were invented, designed and supplied is seldom told. Chris Henry, in this pioneering study, sets the record straight. He describes how, to counter the extraordinary threat posed by the U-boats in the world wars, the Royal Navy responded with weapons that kept open the vital supply routes of the Atlantic Ocean.He also celebrates the remarkable achievements of the engineers and inventors whose inspired work was essential to Britain's survival.

When British Intelligence learns of a German U-Boat anchored off the coast of Sweden, in neutral waters, they enlist the help of an American Naval code-breaking officer to go undercover as Nazis. Their mission: sneak aboard the German sub and liberate the Enigma decoding machine.

Between the world wars, France produced some of the largest and fastest destroyers in the world. Known as Contre-Torpilleurs, these striking and innovative super-destroyers and the more conventional Torpilleurs d’Escadre are the focus of this book. The first part of the book covers the design of these ships, pairing the text with detailed data tables, specially-drawn plans and schemas, and photographs of the ships. The second half details the eventful careers of these ships and contains contemporary photographs and maps commissioned specifically for this book.