[Source] Tharence Wo's holocron, also known as the Journals of Tharence Wo, was a Jedi holocron created by Human Jedi Master Tharence Wo upon which he recorded his journals. He used the holocron to record what he had learned about the Yinchorri, such as their immunity to the effects of Force persuasion. After the Yinchorri murdered Jedi Naeshahn and Ebor Taulk, the Jedi High Council rediscovered the journal's secrets.