"I know you will come for me, Mace. You should never have sent me to Haruun Kal. And I should never have come. But what's done can never be undone. I know you think I've gone mad. I haven't. What's happened to me is worse. I've gone sane. And nothing is more dangerous than a Jedi who is finally sane."
About this creation
Depa Billaba was a female Jedi Master and former Padawan of Mace Windu. She served on the Council for many years until she was sent to Harun Kal at the start of the Clone Wars and vanished.
Mace went to find her and discoved that she had slipped into darkness and was being controlled by a warlord on the planet. After a string of uneasy alliances Depa finally attacked Mace but Mace defeated her and she collapsed.
Depa was taken back to the Temple for healing but she never awoke. When the Temple was attacked it is unknown what happened to her but it is highly likely that she was killed as she was, obviously, unable to defend herself.