One of the more unexpected announcements from Sony's E3 press conference was Wonderbook, a new interactive augmented reality book that works with the PlayStation Eye to bring stories to life.

Wonderbook itself will be compatible with a variety of different experiences, but Sony dedicated the product's reveal to one in particular: Book of Spells. This is being developed in collaboration with J.K. Rowling, and promises to bring new context to the Harry Potter world.

In the fiction, the Book of Spells was written over 200 years ago by Miranda Goshawk. Open the book – physically in front of the PlayStation Eye – and you'll be transported to the Hogwarts library, where you'll read and practice 20 spells, picking up “valuable experiences and lessons along the way”.

It's not going to appeal to everyone, but the technology behind Book of Spells does look extremely impressive. The game's integration of PlayStation Move is also quite unique, making it a welcome change from the typical selection of sports and fitness games that have become so common with motion devices.