Not an aviation book, but...

This si not an aviation book, but… it is the most thrilling sìtrue story I read in the last couple of years.

Shadow Divers: The True Adventure of Two Americans Who Risked Everything to Solve One of the Last Mysteries of World War II

It is absolutely great, and if you have a chance, I reccommand to read it.

Some comments on this book:

An engrossing saga of the suspenseful, intriguing, and dangerous underwater investigation of a Mystery U-boat.
—Clive Cussler

Robert Kurson’s Shadow Divers, about the divers exploring a sunken shipwreck off the New Jersey coast, is a gripping account of real-life adventurers and a real-life mystery. In addition to being compellingly readable on every page, the book offers a unique window on the deep, almost reckless nature of the human quest to know.
—Scott Turow, author of Reversible Errors

A tremendously suspenseful story of discovery that comes as close as any book could to providing the reader with approximate sensations of deep sea diving and of life on a submarine at war, and that leaves us with a hell of an impression of the grit, guts, and compassion of a U-boat crew and the two American divers who risked everything to solve the mystery of their last mission.
—John McCain, author of Faith of My Fathers and Why Courage Matters

Robert Kurson’s status as an undiscovered pleasure among Chicago readers is about to change, I suspect, in a hurry. Shadow Divers is so culturally astute and terrifyingly suspenseful that it should reach the sort of audience John Berendt, Susan Orlean, Jon Krakauer and Laura Hillenbrand have recently earned. Kurson’s new focus is the larger historical world–a world of U-Boats, forensics and lung-crushing pressure–and his prose is, as always, plain gorgeous.”
—James McManus, author of Positively Fifth Street

Useful links on this issue:

Book review 1

Book Review 2

Book Review 3

Book Review 4

This book at Amzon