The Library at Mount Char by Scott Hawkins

After she and a dozen other children found them being raised by "Father," a cruel man with mysterious powers, Carolyn and her "siblings" begin to think he might be God; so when he dies, they square off against each other to determine who will inherit his library, which they believe holds the power to all Creation.

This book is banana pants! A great, fast-paced read but also pretty messed up. You've been warned.

Not sure what I was expecting, but I was not expecting this. Wow.

One of the few books I'm rereading, not because I just love it so much, but because it needs a second read just so you actually understand what the heck is even happening. I liked it on first read, but that doesn't mean I actually understood much. I keep getting Umbrella Academy vibes from this one, if mr terrible garbagesack had wanted to give normal kids both trauma AND magic, rather than just find some kids with magic and skip straight to traumatizing them.