Prologue:

Thera Tykos was a Sith apprentice, a member of a growing Sith force preparing a new strike at the Old Republic and their Jedi protectors, until a logistical decision was made to destroy her. Fortunately she escaped, but running from the Sith, perhaps not so fortunately....

The SW universe is created by George Lucas and his affiliates (Lucasfilm Ltd., Lucasarts, etc.).