In "Heart of the Tiger" the Kilrathi empire was eradicated through the bravery of a few flying aces. Now, Captain Blair and his wing are fighting a more familiar menace - their fellow humans. Blair had settled down to the quiet life of a farmer, but he's been called back into action to fight rebels from the Border Worlds. And Captain Blair finds that dog-fighting with people is a whole different kettle of kittens than fighting an alien cat species. Those humans are "tricky"