Publisher's Synopsis
- Flummoxing an alien empire which has taken a number of human prisoners to gather information prior to an invasion. This has a personal aspect, since the prisoners are from the planet which Roberts tricked into reforming . . .
- Stopping a plan by not-so-good Samaritans who are pretending to cure a planetary plague-which they introduced to the planet-with a "miracle" drug which creates an addiction to the same drug, which the schemers will be glad to continue supplying for ever-increasing sums . . .
- Making sure that the rightful heir to a planet's throne escapes from captivity and overthrows the usurper. This time there's a complication: Roberts may be falling for the heir's beautiful sister. . . .