Fintil was a Bene Gesserit acolyte at their Keep on the planet Buzzell, during the time of Dortujla's posting there. She was selected by Dortujla to deliver a message to Mother Superior Darwi Odrade on Chapterhouse when the Honored Matres came for her. After the successful completion of this mission, Fintil underwent the spice agony and became a Reverend Mother.