JK Rowling has written new material which will be made available to Harry Potter fans online in an interactive experience that will take them on a journey through the books.
The website, Pottermore, will offer new information about the characters, places and objects so familiar to JK Rowling's loyal fanbase.
The author said the project has enabled her to give something back to readers by enabling them to build their own experience around the stories.
Announcing the launch of the website yesterday, she said: "Pottermore is a way for me to be creative on a platform that did not exist when I started writing the books."
Rowling stressed that she is keen to encourage reading.
The project will launch in October but one million fans are being offered the chance to shape the website throughout the summer.
Rowling also revealed the seven Potter novels will be available for the first time as ebooks from October. The author had previously blocked ebook versions.