Lichgates (The Grimoire Saga #1) by S.M. Boyce (2011)
YA Fiction | FantasyBlurb:
“The final page will leave you breathless.
When Kara Magari uncovers a secret door in the middle of the forest, she discovers (and trips through) a portal to a hidden world full of terrifying things: Ourea. She just wants to go home, but the natives have other plans for her. She clashes with immortal shapeshifters, is carried off by a dragon, nearly dies on several occasions, and somehow becomes the master of an ancient book of magic called the Grimoire. Every time she thinks she’s safe, her new “friends” show their true colors. Continue reading