Old MarsGeorge R R Martin, Gardner Dozois, Allen M Steele, Matthew Hughes, David D Levine, S M Stirling, Mary Rosenblum, Mike Resnick, Liz Williams, Howard Waldrop, James S A Corey, Melinda M Snodgrass, Michael Moorcock, Phyllis Eisenstein, Joe R Lansdale, Chris Roberson, Ian McDonaldJoin such seminal contributors as Michael Moorcock, Mike Resnick, Joe R. Lansdale, S. M. Stirling, Mary Rosenblum, Ian McDonald, Liz Williams, James S. A. Corey, and others in this brilliant retro anthology that turns its back on the cold, all-but-airless Mars of the Mariner probes and instead embraces an older, more welcoming, more exotic Mars: a planet of ancient canals cutting through red deserts studded with the ruined cities of dying races.