The Shadows of Blackbriar Academy by Olivia Ash

I made it through the trials, but now the real test begins.

Year One classes have begun in the enchanted halls of Blackbriar Academy, and they’re more challenging than anything I’ve ever faced in my life. Surviving the Academy means brutal training, advanced magic, and a bloodthirsty student who is developing a dangerous hunger for my power.
Worst of all, it’s clear someone knows my secret. And they have my father locked away.
Deep in the rubble of an ancient ruin, we find evidence of a ritual. One we don’t fully understand, but one which most definitely involves me in some way. And as time runs out, we have to find out who’s behind this before they kill everyone I love.
The traps are set. The clock is ticking. And I absolutely must save my father before he’s slaughtered.
God help whoever dares hurt him. I’m not the weak, naive girl I was when I came to Blackbriar.
My magic has never been stronger, and I’ve never had more control. I don’t care if I risk going dark—I’ll do whatever it takes to save the only family I have left.
Or die trying.