Tamalane was a senior Bene Gesserit Reverend Mother who played an integral part in several key events during the Return of the Honored Matres. After acting as an instructor to the final Duncan Idaho ghola, Tamalane became an adviser to the Mother Superior. Her influence increased further during the short reign of Darwi Odrade. She accompanied Odrade, Dortujla and Suipol to Junction as a commander to confront the Great Honored Matre Dama. There she died, shortly before the Bene Gesserit and the Honored Matres were united under Murbella.