Frozen Charlotte

I was very in the mood for exactly this story, so it hit perfectly.
This is one of the most terrifying things I have read in awhile and it is aimed at teens, but the dread and tension are so very thick!
Sophie's best friend dies and she is shipped off to Scotland to the Isle of Skye to stay with cousins. There is Cameron (16) a child prodigy on the piano who can no longer play as his hand was damaged in a fire. Piper (15) the same age as Sophie and Lilias (8 or 9)? Missing is Rebecca who died 8 or 9 years ago when she froze to death on one of the cliffs, with a frozen charlotte in her hand.
Frozen Charlottes are porcelain dolls that were popular in the victorian era. It's also the name of a famous folk ballad about a lady named Charlotte who refused to wear her coat and cover her dress so she freezes to death on the ride to the ball.
Loved this.