DAN BROWN has amazed us with his thorough research.He amazed us first with angels and demons giving us an insight into new energy source
and then with the da vinci code which left whole world baffled
He gave us two books which were equivalently interesting -digital fortress
and deception point

Now he's gonna be back with THE SOLOMON KEY -possibly a seuel to The da vincli code

this is from wikipedia
The Solomon Key is the working title of an unreleased novel currently in progress by Dan Brown, author of several conspiracy novels, most prominently Angels & Demons and The Da Vinci Code. According to current information, The Solomon Key will be the third book involving the fictional Robert Langdon, a Harvard University professor.According to an article in the The Wall Street Journal, the release date for the book has been set by the author and the publisher but is currently being kept a secret