The Last Days of Hitler by Hugh Trevor-Roper

Late in 1945, Trevor-Roper was appointed by British Intelligence in Germany to investigate conflicting evidence surrounding Hitler's final days and to produce a definitive report on his death. The author, who had access to American counterintelligence files and to German prisoners, focuses on the last ten days of Hitler's life, April 20-29, 1945, in the underground bunker in Berlin—a bizarre and gripping episode punctuated by power play and competition among Hitler's potential successors.

"From exhaustive research [Trevor-Roper] has put together a carefully documented, irrefutable, and unforgettable reconstruction of the last days in April, 1945."—New Republic

"A book sound in its scholarship, brilliant in its presentation, a delight for historians and laymen alike."—A. J. P. Taylor, New Statesman