The Non-Canon Expert looks at Darth Sidious’s own writings on Dooku’s Dark Acolyte Asajj Ventress, where the Dark Lord of the Sith explained why he believed Ventress was a valuable ally during the era of the Clone Wars, but also the reasons that made it impossible for her to become Sidious’s Sith apprentice. This is a Legends story for Darth Sidious and Asajj Ventress with information found in a number of Legends sources, but primarily within «Star Wars: Jedi vs. Sith: The Essential Guide to the Force,» the «Star Wars: Republic» comic series, and the Legends novels «Star Wars: Rebel Force: Target» and «Star Wars: Dark Lord: The Rise of Darth Vader.»