Jedi Apprentice: The Captive Temple

The Captive Temple is the seventh in a series of young reader novels that chronicle the adventures of Qui-Gon Jinn and Obi-Wan Kenobi prior to Star Wars Episode I: The Phantom Menace.

Publisher's Summary
The Jedi Temple is under attack. An attempt has een made to kill Yoda. A dangerous intruder has infiltrated the Jedi.

Everybody is under suspicion, and no one is safe from harm. Obi-Wan Kenobi and Qui-Gon Jinn must get to the heart of the conspiracy... or watch the Temple be destroyed - from inside.