Another classic Disney story from 1990. This one I also had as a child and it brings back great memories every time I read it! This book even features Ursula the sea witch! Hope you all like it! These scans are from the re-release of the book from the 1997 version.
Read the story here. Like always, you just have to click on the image for the full-size image.
Also, I bet if this book was released today, it would be called "Disney Princess: Ariel and the Mysterious World Above"