This fourth volume of the year's best science fiction and fantasy features thirty stories by some of the genre's greatest authors, including Jonathan Carroll, Neil Gaiman, Kij Johnson, Kelly Link, Paul McAuley, RJ Parker, Robert Reed, Rachel Swirsky, Catherynne M. Valente, and many others. Selecting the best fiction from Asimov's, F&SF, Strange Horizons, Subterranean, Tor.com, and other top ven...