Book Talk: Maus II: and here my trouble began

The book that I'm currently reading is called Maus II: and here my trouble began by Art Spiegleman which is realistic fiction and is the second book in the series. In the first book it is about a jewish father named Vladek Speigleman who is sharing his stories in Auschwitz to his son who is writing a book about the experience his father had during the holocaust. The second book talks more about his experience but it is more dramatic than the last book. The mood of this book is a combination between shocking and sad because the book talks about some of the deaths and horrible experience to others who struggled in the holocaust. As of now I only read 75 pages of the book so the ending is sti a mystery for me.