Gilbert continues his adventures with his new friend, Aoleon (from Mars), when she takes him home to meet her family. Gilbert discovers that Martians have their own version of pizza called a "Galact platter." Aoleon tells him that, "No civilized world can exist without it." He also gets to visit her school and see what classes in zero-G training and galactic history are like. But the fun really happens when he attends a psi-ball match in which Aoleon's team is competing with the team from the Martian Science Academy. Imagine a Quidditch match that uses hoverboards rather than brooms and the team has to capture the opponent's flag rather than a snitch; that is a rough idea of what psi-ball is like.
But it's not all fun and games. Something is wrong on Mars. All the bovars (the Martian version of a cow). have disappeared and there may be war as the desperate Martians consider stealing cows from Earth. While Aoleon and Gilbert are traveling through the city to her home, they pass the Luminess, the wife of the ruler of Mars, and Gilbert has a startling vision of her as a hideous reptilian creature. What could have caused that? And why has the leader of the resistance movement asked them to find out what is really going on inside the Luminon's palace? What can two kids do? As if that weren't enough, one of Aoleon's classmates has begun acting very odd and may even have tried to throw the psi-ball game.
Readers will want to continue on to the next book in the series and see if these friends can find some answers to all their questions and prevent an interplanetary war. I read an advance copy that the author provided for review purposes.