Backlash
(Book)

Repercussions from the dark side's fatal seduction of Jacen Solo and the mysterious plague of madness afflicting young Jedi continue to wreak havoc galaxy-wide. Having narrowly escaped the deranged Force worshippers known as the Mind Walkers and a deadly Sith hit squad, Luke and Ben Skywalker are in pursuit of the now Masterless Sith apprentice. It is a chase that leads to the forbidding planet Dathomir, where an enclave of powerful dark side Force-wielders will give Vestara the edge she needs to escape--and where the Skywalkers will be forced into combat for their quarry and their lives.