Losing Christina series by Caroline B Cooney

I couldn't believe it when I found this series on the shelf in the library I work in now! I loved this series when I was in middle school.

The Fog
Christina is beginning 7th grade and that means moving to the mainland for school. She'll be boarding with three others from Burning Fog Island--Benj, Michael, and Anya. She isn't looking forward from being separated from her parents, but believes she'll make lots of friends and enjoy school.

But things aren't always as they seem. The Islanders live with the Shevvingtons, and as soon as they move into the Inne, weird things start to happen. Anya believes the sea is out to get her, and can't maintain her grades or interest in anything but avoiding the sea. Are the Shevvingtons causing Anya's breakdowns? Can Christina save her?

The Snow
The winter opens with Dolly, Benj and Michael's younger sister, joining the boarders on the mainland. Dolly's only in 6th grade, but the Shevvingtons pulled some strings to get their next victim in place.

Meanwhile, Christina continues to be careful. She is aware that the Shevvingtons aren't going to just give up on her, Anya, or Dolly. But now it seems like there's someone else in the Inne. Someone else who may have a plan for the girls living there.

The Fire
The end of the school year is near, and Christina can't wait to go home. She figures with only a few days left, nothing can go wrong.

Christina also meets Val, one of the Shevvingtons' victims. During that visit, Val gets the courage to do something she's never attempted--she runs away from the mental institution she was put into. Straight to Christina. Can she save herself and Val before the Shevvingtons find out?

This is a great series and story about a seventh grader who has a clearer picture of what's happening in her life than all the adults around her. Everyone is convinced the Shevvingtons are fantastic people, and only Christina, and their victims, can see the truth. And no matter what, Christina can't give up.