Inkheart - Cornelia Funke

Meggie loves books. So does her father, Mo, a bookbinder, although
he's never read aloud to her since her mother mysteriously disappeared.
They live quietly until the night a stranger arrives with
a warning. The next day, Mo starts packing but won't tell Meggie
why. They must go into hiding. But from what? From whom?
Soon, Mo's secret is revealed. He has the amazing ability to breathe
life into stories, to make characters come alive. Years ago,
he accidentally released a merciless villain from a book called Inkheart.
And now, this hateful criminal is after Mo and his extraordinary
gift ...
Meggie is hurled into the adventure of a lifetime, where the imaginary
has become real. It's up to her to find a way to alter the
course of the story that holds them all in its power.