In My Restless Dreams

ALESSA- is the apparition that Harry Mason encounters during his journey into Silent Hill. It is revealed that Alessa was originally meant to take over in her mother Dahlia's footsteps and become a Priestess of the Holy Woman sect. When Dahlia and the other cult members found out about her powers they decided that Alessa would be the perfect vessel for the God. Alessa, who was troubled by many psychological problems, refused to take part in the cult's activities. In order to hasten the birth of the God, Dahlia burned down her house with Alessa inside. Alessa would then split her soul in half and create a new baby. This baby would be found by Harry Mason and his wife. She would be named Cheryl Mason. Alessa would spend the next seven years in a coma suffering in a hellish nightmare, which ultimately becomes the basis of the darkness that Alessa spreads in Silent Hill. Upon Cheryl's return to Silent Hill, Alessa would send out her soul.

After Harry crashes, the souls of Cheryl and Alessa merge. At the final battle, the physical Alessa and the Soul of Alessa are merged and form the Mother of God. When Dr. Kaufmann throws a bottle of Agliaphotis on the Mother of God she prematurely expels the Demon God Samael. Harry is then able to defeat the prematurely expelled and thus weakened Incubus. After the battle the Holy Woman in White reappears. She gives Harry a baby with the complete soul of Alessa and Cheryl.