Ganymede: a half-terraformed, isolated human outpost. Low population, all pioneering spacers with a frontier attitude.
Where retired Captain Cole Douglas runs a bar in an old shuttlecraft.
Far from help, if that orange flash in the sky indicates an invasion force...
"Only Sheepdog on the Moon" A military space adventure short story about one man facing off an invading force. From Stefon Mears, author of Stealing from Pirates and Fade to Gold.