I started reading a book, but now I can't remember the title...
It's in English, YoungAdult/Fantasy (I assume)...
I've only read the beginning; and it starts in a private school (for girls?) in a city (New York? London?). The main character is a girl who's lost her parents (or mother) and is nominally living with her aunt - she gets little money, so her school-uniform sweater is very worn. She shares a room with one or two other girls, and they're good friends. One is rather wealthy.
The main character has dreams about winter, snow, large woods, being followed and perhaps wolfs (I suspect werewolves, but don't know) - she thinks it has to do with her father, and that it may be in Russia.
The school is planning a trip to Russia (Moscow or St. Petersburg) for some students; but without money, parental permission nor shining academic standing it's unlikely our girl can go. But then a strange Russian woman visits, takes pictures of our girl, and pretty much insists she goes.
With a bit of forged permission, our girl and her two friends go with other students to Russia. But the three get separated from the other students, and takes a long train-ride. They're met by the woman from earlier and taken by horse-and-sled to a castle/manor - which is old and in ill-repair. The woman tells how the owners were killed during the Russian Revolution.
Well, does this sound familiar? Anybody knows the title and author?