What thematic ideas of revenge ambition and Perseverance are in this book

Revenge ambition is what this book is about. Really no matter where you look or what plot line you follow, revenge is at the heart. We wait with baited breath to see if and how the Count will get his revenge. If the Count pulls it off we also wonder if his revenge ambition hurt more people than he wanted to and if other characters may want to avenge people the Count went after. Does revenge spark a never ending cycle of hurt and retribution?