Path of night - Sarah Rees Brennan

Half-witch, half-mortal sixteen-year-old Sabrina Spellman
has made her choice: she's embraced her witchy roots, and
her power is growing daily. But will it come at too high a price?

It's not easy being half-mortal, half-witch. At least, not for
Sabrina Spellman. She just discovered that her dad is Satan
and that it's her destiny to rule Hell.

As usual, Sabrina's got other plans for her future. She's figured
out a way to trap her father
but he's caged in the body
of her boyfriend, Nick Scratch. Now the love of her life is stuck
in Hell
with Satan stuck inside him.

Sabrina knows there's a way to get Nick back while also keeping
dear old dad out of commission. She just has to figure out what
it is. Unfortunately, her loyal cousin Ambrose is unavailable as
he's off hunting Father Blackwood, the evil former head of the Church
of Night.

Fortunately, Sabrina's still got her mortal friends, Roz, Harvey
and Theo. So when her aunt Zelda - now the church's high
priestess - mentions an ancient quest that might help open
the gates of Hell, Sabrina and her friends are all in. But Zelda
failed to mention that the quest has some perils of its own