The Desperate Mission by Jude Watson

In the aftermath of the Jedi Purge, a reclusive former Master risks breaking his exile to track down a one-time Padawan who left the Order before the fall. Teaming with a resourceful street kid and local resistance on an Imperial-controlled world, he navigates traps, prisons, and the attention of dark hunters to orchestrate a daring rescue. The mission forces the survivor to confront his past and accept a new purpose—searching for other hidden Jedi and quietly resisting the Empire—while the older guardian returns to his lonely vigil on a desert planet.

Purchase from Bookshop.org