Recommended books, Aug. 5 Double CrossThe True Story of the D-Day SpiesBy Ben Macintyre(Crown; 399 pages; $26)Macintyre's complex, absorbing final installment in his trilogy about World War II espionage describes in entertaining detail how Allied Forces gained that advantage and used it to take the beaches at Normandy on June 6, 1944. Albert of AdelaideBy Howard Anderson(Twelve; 225 pages; $24.99)Without question, this is the best novel ever written about a platypus walking through the Australian outback and encountering a murderous possum, devious wallabies and kangaroos, a fire-addicted wombat, a brace of alcoholic bandicoots, a shady American raccoon and lots of soldierly dingoes.