Eaters and Overlords

In pursuit of an extra credit project for her zoology course, Terri stumbles on three ape-like creatures hiding in a makeshift tree house. The fact that there are no apes native to the rainforests of the northwest might be of purely academic interest if it weren't for the recent nearby knife murder of an old man . . . and that one of the primates brandishes a small sword. The delinquent trio insist that Terri find "properly respectful experts" to help them refuel their small spaceship, warning of dire consequences if not soon achieved. When she explains that no one on Earth can create quantities of antimatter, they set off to find a refueling base that had been brought to Earth thousands of years ago. Thus begins Terri's adventure with three refugee aliens, so confident in their superiority to humans, even though they use medieval weapons and prefer to live in trees. Other beings have tracked the refugees to Earth, however-an intersection of ancient interstellar rivals with Terri-and Earth-caught smack dab in the middle.