The reader is asked to make choices which will determine the fate of a beloved robot.

By making a series of choices, the reader must find a missing robot that has gone haywire and taken off before it can cause trouble.

Your parents are scientists. One day, they throw some pieces of a robot into the rubbish. If you can figure out how to put the pieces together, you'll have a robot of your very own! But do you know enough to control it? Or will it take over your school?

The reader takes up the role of a young dragonlark that sets out in search of the missing Dragon Queen.

The reader is asked to make choices which will determine the fate of a discarded robot.

In this white-knuckled true story that is “as exciting as any action novel” (The New York Times Book Review), an astronomer-turned-cyber-detective begins a personal quest to expose a hidden network of spies that threatens national security and leads all the way to the KGB. When Cliff Stoll followed the trail of a 75-cent accounting error at his workplace, the Lawrence Berkeley National Laboratory, it led him to the presence of an unauthorized user on the system. Suddenly, Stoll found himself crossing paths with a hacker named “Hunter” who had managed to break into sensitive United States networks and steal vital information. Stoll made the dangerous decision to begin a one-man hunt of his own: spying on the spy. It was a high-stakes game of deception, broken codes, satellites, and missile bases, one that eventually gained the attention of the CIA. What started as simply observing soon became a game of cat and mouse that ultimately reached all the way to the KGB.

Offering eight possible endings, the reader invents a zombie potion that will control their grandparents' behavior.