In the season four finale "Commencement", Lana is confronted by Jason's mother Genevieve (Jane Seymour), who is also after the three stones of knowledge, and during a struggle Isobel comes forward and kills Genevieve.
Dalam akhir empat musim "Permulaan", Lana dihadapkan oleh ibu Jason Genevieve (Jane Seymour), yang juga mencari tiga batu dari pengetahuan, dan selama pergolakan, Isobel datang ke dan membunuh Genevieve.