Mental Floss

What's That Book?

Chris Higgins

It has happened to all of us: you read a book years ago, and have forgotten the title, author, really everything except that it had to do with hot air balloons and a volcano. Well, now there's a free What's That Book service to identify such mysterious tomes. The site was founded by a former Google Answers Researcher who answered over 2000 questions (many about books) on the now-defunct Google Answers service.

Although the site is relatively new, there are some impressive identifications: American pope novel?, Satanic cult with weird staircase, and Titanic researchers survive alien attack are just a few.