SOLVED. Book about girl going through mirror to an old farmhouse. [s]

[Whitney]

I'm looking for a juvenile book where a young girl finds an old, carved mirror and sees another girl in it with braids and wearing gingham. She is able to transport through the mirror at certain times of the moon, to an old farmhouse where the other girl lives in the past. The girl in the mirror lost her sister and wants to keep this new girl at all costs. The girl who entered the mirror wants to return home but is unsure how. She realizes this other girl is evil and needs to return home (to her own time/sister(? - I can't remember).

[Rainbowheart]

Stranger in the Mirror

[Whitney]

Omg, that is it!! Thank you, God I just could not find that via Googling. Was driving me NUTS. I ended up checking out Mirror of Danger, thinking that was it

[Rainbowheart]

Mirror of Danger is another popular one!

You're welcome, happy to help out.