What was the climax of Mirror by Judith kay?

The climax of the book Mirror, by Judith Kay occurs when Kate realizes the truth - that a young girl living across the street, Rachel, was the daughter who died in mysterious and unsolved circumstances and Kate had never really moved on after losing her and now her ghost was here to bring forth the truth and give herself the justice which had so far eluded her and her parents all through their lives thus setting things straight before she could let go and find her peace in the afterlife.. This revelation leads to a dramatic confrontation between K