Reddit reviews The Sign of the Seahorse: A Tale of Greed and High Adventure in Two Acts (Picture Puffins)
We found 3 Reddit comments about The Sign of the Seahorse: A Tale of Greed and High Adventure in Two Acts (Picture Puffins). Here are the top ones, ranked by their Reddit score.
sounds like Sign of the Seahorse
http://www.amazon.com/Sign-Seahorse-Adventure-Picture-Puffins/dp/0140563873
Reminds me of This Book.
There's even a map! You can see it on amazon
I recall really liking this one.