<P> Heather saves Vincent and they go to Lakeside Amusement Park where the Order's sanctuary is hidden . Dark Alessa (Erin Pitt and Adelaide Clemens), the manifestation of Alessa's wrath, confronts Heather who embraces her counterpart, absorbing her, and making Alessa complete once again . Heather confronts Claudia, who is holding Harry and Vincent hostage . Claudia explains that Alessa's destiny was to be the incubator for a deity worshiped by the Order, who would punish all sinners upon its birth, completing Heather's destiny as well . Remembering Leonard's words, Heather gives Claudia the Seal of Metatron, revealing her to be the Missionary . Heather summons Pyramid Head, who kills the Missionary, allowing Heather to rescue Vincent and Harry . </P> <P> As the fog fades from the town, Harry decides to stay in Silent Hill to find and free Rose, leaving Heather in Vincent's care . They manage to hitch a ride away from the place in a truck driven by Travis Grady (Peter Outerbridge). Travis mentions to Heather (now referring to herself as Sharon) and Vincent that they were lucky he was there since he hadn't been driving in that direction for a long time . A couple of police cars, followed by a prisoner transport, enter the area of Silent Hill, which is then consumed by the fog . In a post-credits scene, Pyramid Head is seen walking through an unknown area in Silent Hill . </P> <Ul> <Li> Adelaide Clemens as Heather Mason / Sharon Da Silva, the troubled adoptive daughter of Rose and Chris Da Silva who has been running away from Silent Hill with Chris for six years, and as Dark Alessa, in teenaged form, the tormented daughter of Dahlia Gillespie who was severely burned by the cult and exacted revenge on them . </Li> <Li> Kit Harington as Vincent Cooper, a classmate of Heather and secretly a member of the Order and the son of Claudia Wolf, sent to take Heather to Silent Hill . </Li> <Li> Sean Bean as Harry Mason / Christopher Da Silva, the adoptive father of Sharon who has been keeping Heather's true identity and memories a secret out of protection for six years . </Li> <Li> Carrie - Anne Moss as Claudia Wolf, the priestess of the Order of Valtiel, sister of Christabella and Dahlia, daughter of Leonard, and the main antagonist of the film who holds Christopher captive . </Li> <Li> Malcolm McDowell as Leonard Wolf, the grandfather of Vincent and father of Claudia who was chained down and abandoned by the cult . </Li> <Li> Martin Donovan as Douglas Cartland, a detective hired by Claudia to spy on Sharon and Vincent to capture them . </Li> <Li> Heather Marks as Suki, a girl who took a wrong turn and got lost in the fog . </Li> <Li> Roberto Campanella as Pyramid Head, a humanoid monster wearing a triangular shaped helmet who protects Sharon and Alessa . </Li> <Li> Radha Mitchell as Rose Da Silva, the adoptive mother of Sharon and wife to Chris who is trapped in the fog world after the events of the first film . </Li> <Li> Deborah Kara Unger as Dahlia Gillespie, the ragged and depressed biological mother of Alessa Gillespie who wanders through Silent Hill's alternate dimensions . </Li> <Li> Erin Pitt as Young Alessa Gillespie, the tormented daughter of Dahlia Gillespie who was severely burned by the cult and exacted revenge on them, and as the younger Sharon Da Silva, along with Dark Alessa who is seen frequently haunting Heather . </Li> <Li> Peter Outerbridge as Travis Grady, a character from Silent Hill: Origins who makes a cameo near the end of the film . </Li> </Ul> <Li> Adelaide Clemens as Heather Mason / Sharon Da Silva, the troubled adoptive daughter of Rose and Chris Da Silva who has been running away from Silent Hill with Chris for six years, and as Dark Alessa, in teenaged form, the tormented daughter of Dahlia Gillespie who was severely burned by the cult and exacted revenge on them . </Li>

What is the plot of silent hill revelation