 The prequel novel "" (2000) establishes this as an alias of Mohiam.Alma Mavis Taraza is the Mother Superior in "Heretics of Dune" (1984) who brings Bashar Miles Teg reluctantly out of retirement to guard the latest Duncan Idaho ghola.Taraza blackmails Tleilaxu Master Waff to find out all he knows about the new threat to the Old Empire known as the Honored Matres, as well as the fact that the Bene Tleilax have included their own agenda within the ghola.