This book is a murder mystery. It has many cases many years old. This is a good book for people who like to try and solve casses. The book has up to 11 cases. the book is a bit like the Jack the ripper books, it gives you the story and lets you make your mind up. The videos are quite good as well, because it helps you with the story line and to help you guess who done the murders, because it shows what might have happend in the murders. The bbok is good because it is achallangeing book it makes you speculate about the murder. I defenetly would recommend this book to people who like a murer mystery.