Today Project Gutenberg adds a story by Nebula Grand Master and living legend, Frederik Pohl, along with a story by James H. Schmitz.
"Pythias" by Frederik Pohl
"Sure, Larry Connaught saved my life—but it was how he did it that forced me to murder him!"
"The Other Likeness" by James H. Schmitz
"There is a limit to how perfect a counterfeit can be— a limit that cannot be passed without an odd phenomenon setting in...."