|Behind the scenes|
The Kelbrid are a fierce race of aliens who live in a section of space known to the Andalites as Kelbrid space, having made a treaty stating that neither of them can cross the border. Interestingly enough, the Andalites have never seen the Kelbrid themselves, and their appearance is thus not known. Moments before the end of the Andalite-Yeerk War, Tom's Yeerk's followers fled Earth and headed to Kelbrid space on the Blade ship. Two years later, Captain-Prince Aximili-Esgarrouth-Isthill was attacked, kidnapped and taken to Kelbrid space, prompting Jake, Tobias, Marco, Menderash, Santorelli and Jeanne Gerard to travel to Kelbrid space, although it was oddly empty of any signs of intelligent life.
- The Beginning (mentioned)