Are there any good accurate book that cover the information in your reply?
I am sorry that I am just now seeing your reply and question. A great book is called "The Dream and the Tomb" by Robert Payne, who comes with his own credentials to authenticate his narrative. It is a great read and flows more like a novel than a history. It is not dry at all (the talent of Payne) and if you have any interest in the Crusades, this should be the first book you read.