Boy genius and inventor Frank Einstein and his robot pals Klink (intelligent) and Klank (sort-of intelligent) study the science of ecology and conservation as they try to stop classmate and archrival T. Edison and his loggers from destroying the Midville Forest Preserve.

"When Lana and her father return to their seaside hometown to help clear the debris of a big storm, Lana remembers how much she's missed the ocean--and the strong, reassuring presence of her aunt. As Lana explores the familiar beach, she discovers something incredible: a colony of Aquicorns, small magical seahorse-like creatures that live in the coral reef. Lana rescues an injured Aquicorn and cares for it with the help of her aunt, who may know more...

Readers follow two boys and their dog as they are taken from Earth on a trip to the other seven planets in a spacecraft that's fast enough to give a tour. At each stop the narrator explains why humans could not live there. The characters are promptly returned to Earth, and the book explains why it's the only planet that is just right for humans.