Savage Headhunters

Chased by cannibals through an Amazonian jungle, an archeologist takes refuge within an old pyramid, only to confront an evil worse than the man-eaters without.
You see, inside the pyramid is a little old lady who collects books. But hers are not standard editions. Each putrid publication in her sickening study is so disgusting that nobody can flip through one without doing a rainbow cough.
The librarian makes a deal with the archeologist: if he can read just one retched record from her bibliotheca of bile, she will help him escape the cannibals. But if he tosses his breakfast, he will become their lunch!
The horrible hardcover he must read is a gory history of American servicemen on Guadalcanal in World War II, who collect the skulls of dead Japanese soldiers. This abominable account is a narrative so nasty that there's no way he'll be able to cram it all in without regurgitating everything he's learned.
Can you read this book without throwing up? Do you take the challenge?