Napoleon is in New Orleans in William Sanders's «Empire»; the German Empire thrives in 1929 in Harry Turtledove's "Uncle Alf"; Pancho Villa's about to become the vice-president in S.M. Stirling and Richard Foss's «Compadres»; and General Patton gets a new diary in Roland J. Green's "George Patton Slept Here." In Alternate Generals II, a collection of 13 wild speculations for those who enjoy spe...