Have you ever wondered how Amazon does their book recommendations? You look up one item and all sorts of great suggestions come up of other books you might enjoy. Click the link below to see an awesome visual re-creation of how this works.
http://www.mediabistro.com/galleycat/amazon-book-search-results-visualized_b46441?utm_source=Publishers+Weekly%27s+PW+Daily&utm_campaign=8473fdd026-UA-15906914-1&utm_medium=email
The link below is the visual list created for finding books like Forbidden Sea. So cool, check it out!
http://www.yasiv.com/amazon#/Search?q=forbidden%20sea&category=Books