Vengeful, Paperback Book, By: V. E. Schwab

Sydney Clarke once had Serena beloved sister, betrayed enemy, powerful ally. But now she's alone, except for her thrice-dead dog, Dol. And then there's Victor, who thinks Sydney doesn't know about his most recent act of vengeance. Victor himself is under the radar these days being buried and re-animated can strike concern even if one has superhuman powers. And Eli Ever still has yet to pay for the evil he has done.