by Connie Willis
Winner of the Nebula Award
Traveling back in time, from Oxford circa 2060 into the thick of World War II, was a routine excursion for three British historians eager to study firsthand the heroism and horrors of the Dunkirk evacuation and the London Blitz. But getting marooned in war-torn 1940 England has turned Michael Davies, Merope Ward, and Polly Churchill from temporal tourists into besieged citizens struggling to survive Hitlerâ€™s devastating onslaught. And now thereâ€™s more to worry about than just getting back home: The impossibility of altering past events has always been a core belief of time-travel theoryâ€”but it may be tragically wrong. When discrepancies in the historical record begin cropping up, it suggests that one or all of the future visitors have somehow changed the pastâ€”and, ultimately, the outcome of the war. Meanwhile, in 2060 Oxford, the stranded historiansâ€™ supervisor, Mr. Dunworthy, frantically confronts the seemingly impossible task of rescuing his studentsâ€”three missing needles in the haystack of history. The thrilling time-tripping adventure that began withÂ BlackoutÂ now hurtles to its stunning resolution inÂ All Clear.