I'm always ready for a good book about hell, the underworld, eternal punishment, etc. Hell is one of those abstractions that almost everyone is familiar with, and can be universally defined as a place where no one wants to go. Except the band AC/DC is particularly fond of hell, as evidenced by "Hell's Bells," "Highway to Hell," and "Hell Ain't a Bad Place to Be." In any case, people are obsessed with hell, demons, the devil, and all that good stuff.
This morbid curiosity is probably why I liked this book so much. It chronicles the various incarnations of the place of punishment through various religions and mythologies. There are some similarities, like being somewhere underground, therefore opposite of paradise, and usually filled with an unquenchable fire along with other various torments. The appeal of this book is the variety in which these straightforward elements of punishment are described. My favorite descriptions came from The Vision of Tundale, which was filled with lots and lots of fire, screaming, and gnashing of teeth, but also flaying, decapitation, and other forms of hacking done to the souls of the impious and impure who pile sin upon sin. The devil himself is punished by being chained to a grill and seared over a great bed of hot coals all while rending the souls of the wicked with his teeth and claws. That's probably not what he was expecting when he rebelled against God.
Aside from the mythological aspects, the last parts of the book examine the hell that people inflict upon one another, such as the Nazi death camps such as Auschwitz and Birkenau, the atomic bombs the US dropped on Nagasaki and Hiroshima, and the prison in Guantanamo Bay. This is an acknowledgement that humans don't need ethereal or otherworldly beings to inflict terrible pain and suffering. Maybe we should take a look at the last hundred years or so, interrogate the past, and find a better way for ourselves.