Here is the Site of PDF File Format of the book..

http://www.lulu.com/shop/ben-waggoner/the-sagas-of-ragnar-lodbrok/ebook/product-17560944.html

You have to buy it to $5 to get the Ebook

Here is my BTC address:  3QAcCSJhsC5KjK3zWKE2K7Yz2eWmW4GwGS