The Hidden Past Star Wars: Jedi Apprentice, Book 3

After Obi-Wan Kenobi and Qui-Gon Jinn are hijacked to the planet Phindar, they find themselves trapped in a world gone mad. The ruling Syndicat controls the people by erasing their memories. The planet's only hope lies with a band of thieving rebels.

Qui-Gon and Obi-Wan are caught in a mind war. And if they're not careful, their own pasts will be wiped out forever.