She witnessed her father kill Corinne's mother, was stuffed in the trunk of their car with the corpse, and was about to be burned alive when Corinne and John, her brother, saved her. Since then, if Lisa didn't like something, she pretended it didn't exist or changed people's minds. This attitude nearly caused Corinne and Cullen to die in Dark Melody, causing Lisa to feel very guilty about the fact that she had pretended everything was alright and no strange people were out to kill them, even though the Vampire Hunting Society had targeted them. Lisa and Cullen get married, though her need for there only to be good in the world still makes her vulnerable.