Elliott, Kate -- Cold Magic

This is one of those alternate histories where the Americas aren't inhabited by human beings. Actually it might have been just South America. Just to warn you. Anyhow, the book starts out as Young Ladies in School, which was kind of painful, but rapidly turns into Young Lady's Adventure as an aristocracy of evil mages start chasing her across an Ice-Age-ridden Europe with evil and/or matrimony on their minds. There are also zeppelins. I like Ice Age mages and zeppelins.

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