His dog. His computer. The tunnels under New York City. That’s all Joe Tesla’s agoraphobia has left him with—the inside world, the dark world—and now the black depths of the sea. In the latest book in this award-winning thriller series, Joe Tesla seeks to expand his world beneath. He buys a personal submarine to join an underwater scavenger hunt. The competition turns deadly when a mystery sub targets Joe. His search for answers drives him and his service dog out to sea where he alone might find answers in time to save the city he loves from annihilation. But can a man trapped inside by his own fears save the larger world above?

An untold story of scientists and engineers who changed the course of World War I Roy R. Manstan's new book documents the rise of German submarines in World War I and the Allies' successful response of tracking them with innovative listening devices—precursors to modern sonar. The Listeners: U-boat Hunters During the Great War details the struggle to find a solution to the unanticipated efficiency of the German U-boat as an undersea predator. Success or failure was in the hands and minds of the scientists and naval personnel at the Naval Experimental Station in New London, Connecticut. Through the use of archival materials, personal papers, and memoirs The Listeners takes readers into the world of the civilian scientists and engineers and naval personnel who were directly involved with the development and use of submarine detection technology during the war.

Do sharks lay eggs or give birth to live young? Do sharks sleep? How long do they live? How likely are shark attacks? This book answers your questions about some of nature’s most misunderstood animals. Answering every conceivable question about sharks, authors Gene Helfman and George H. Burgess describe the fascinating biology, behavior, diversity (there are more than 1,000 species worldwide), and cultural importance of sharks, their close relationship to skates and rays, and their critical role in healthy ecosystems. Helfman and Burgess take readers on a round-the-world tour of shark habitats, which include oceans as well as lakes and even rivers (as far up the Mississippi as St. Louis). They describe huge, ferocious predators like (Great) White and Tiger sharks and species such as Basking and Whale sharks that feed on microscopic prey yet can grow to lengths of more than 40 feet. The mysterious and powerful Greenland shark, the authors explain, reaches a weight of 2,200 pounds on a diet of seal flesh. Small (less than 2-foot long) Cookiecutter sharks attack other sharks and even take a chunk out of the occasional swimmer. Despite our natural fascination with sharks, we have become their worst enemy. Many shark species are in serious decline and a number are threatened with extinction as a result of overfishing and persecution. Sharks: The Animal Answer Guide presents a perfect mix of current science, history, anthropology, intriguing facts, and gripping photographs. Whether your fascination with sharks stems from fear or curiosity, your knowledge of these animals will improve immensely when you consult this book.

A richly illustrated reference. Sharks are awe-inspiring, beautiful, mysterious and frightening. However perceived, they never fail to excite and impress. They predate the dinosaurs and have ruled the seas for 400 million years. Shark presents the facts and explores the fallacies about these nearly perfectly adapted fish, from their prehistoric beginning to their struggle for survival today. The book covers: Their origins and ancestors Diversity of the species Shark behavior and physiology Research projects Face-to-face encounters Conservation efforts. A detailed chapter on shark attacks explains where, when and why attacks occur. The book also describes the different types of attacks -- hit-and-run, bump-and-bite and sneak attacks -- and provides useful tips for not becoming a statistic. Engagingly written and illustrated with stunning photographs, Shark combines the latest scientific findings and celebrates the mystery and diversity of a remarkable species.

The history of the United States 110' submarine chasers in World War I. Heavily illustrated. 224 pages. See www.signallightbooks.com