The best-selling author is finally giving us an insight into the mind of brooding billionaire Christian Grey, as the new offering is told from the perspective of Mr Grey himself.
As expected, the cover is very grey indeed, and it even features an image of Christian's intense grey eyes on the cover.
The surprise addition will be a spin-off of the first book in the in the 50 Shades of Grey trilogy. So we'll find out exactly what went through the mysterious characters' mind when he first set eyes on Anastasia Steele, and find out more about his troubled past.
The trilogy has sold more than 125 million copies worldwide and we just can't seem to get enough of the S&M antics.
In a statement, E.L. James said: "This book is dedicated to those readers who asked...and asked... and asked... and asked for this. Christian is a complex character and readers have always been fascinated by his desires and motivations and his troubled past.
"Also, as anyone who has ever been in a relationship knows, there are two sides to every story. It's been a great pleasure to return to my happy place - writing, being with Christian and Ana in their universe."
The book is published on Christian's birthday, 18th June. That's our summer holiday reading sorted then!
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!
50 Shades - Interview scene: