Ink Blood Sister Scribe by Emma Torzs

For generations, the Kalotay family has guarded a collection of rare and dangerous books. Books that let a person walk through walls, or borrow someone else's face; books of magic.

Now, Joanna Kalotay lives alone in the woods of Vermont, their library's sole protector, while her estranged older half-sister, Esther moves between countries and jobs, constantly changing, never staying anywhere for longer than a year, desperate to avoid the dangerous magic that killed her own mother. She is currently working as an electrician on a research base in Antarctica where she has found love. Maybe, finally, she feels free.

But when someone on-base begins using magic, Esther realizes that she can't outrun her family's legacy. The long-separated sisters must work together to unravel the secrets their parents kept hidden, secrets that span centuries and continents, and even other libraries...