my friend and I were discussing this morning, we have some theories....
Alice's grandad is actually her dad? Going on her dads sperm count and the way the grandad acting.... maybe Alice was killed by grandma, fit of jealousy!!
Amy has not been mentioned in 2010. Maybe she died somehow and it is she haunting the house in 2010.
The message in the mirror in 2010 said ASKOR, ask Olive R???. She was not around in the 60's so it could be Amy writing this message. Maybe she died in the 80's and it was something to do with Olive??
LOL... just some ideas x