When Count Dooku's growing menace becomes too dangerous to ignore, the Jedi Council makes an uneasy choice: pair Jedi Master Quinlan Vos with Asajj Ventress, the Sith-trained assassin turned bounty hunter who knows Dooku's methods better than anyone, and send them to kill him. As their partnership deepens into something neither expected, Vos finds the line between using the dark side and being used by it growing dangerously thin. A Star Wars novel built from an unproduced Clone Wars television arc.
Summary by Loreful, from public sources