Barney is all set to spend two weeks doing nothing at his parents' summer house. But then he meets the neighbors, and things start to get interesting. Zena, Manny, and Joe are not your average folks on vacation. In fact, Barney suspects they're not from Earth at all. Not only are they physically perfect in every way, but they don't seem to have jobs or permanent addresses, and they are addicted to a strange role-playing game called Interstellar Pig. As Barney finds himself sucked into their bizarre obsession, he begins to wonder if Interstellar Pig is just a game.
William Warner Sleator III (1945–2011), known as William Sleator, was an American science fiction author who wrote primarily young adult novels but also wrote for younger readers. His books typically deal with adolescents coming across a peculiar phenomenon related to an element of theoretical science, then trying to deal with the situation. The theme of family relationships, especially between siblings, is frequently intertwined with the science fiction plotline.
Interstellar Pig consists of two works. The current recommended reading order for the series is provided below.