The reawakening

After his supposed death Grevious finds that there was a countermeasure in place from his former master. Now without a master and a cause he plots a course for a planet in the unknown regions of space far from this new empire and its mighty fleets and army.
Here is the map of the galaxy:
https://www.reddit.com/r/StarWars/comments/68f558/star_wars_galaxy_map_i_made_to_learn_some/
This is a combination of the legends and cannon Grievous.