This is not the only adult book I've read, but is certainly one of the best. I'm sorry I haven't posted in a while, as it's been Christmas. This book is the last of the four Dan Brown books I've had the luck to read. They are amazing! This nearly six hundred page novel followed the account of Gabrielle Ashe, who is an advisor for Senator Sexton, who is running for the presidential office. It also follows the experience of Rachael Sexton, the senators daughter. Gabrielle, an intelligent young woman, advises the senator to attack the current president on the problems and faults of NASA. All is not looking good for the president, and things look incredibly slim of him running for office again. That is, until NASA, using revolutionary PODS equipment, discover a blip on the radar, up in the North Pole. They take some quick investigations, then take up what appears to be a rock, and claims it is a meteorite. Many people confirm this, most predominantly, Corky Marlinson, Michael Tolland, Wailee Ming ad Norah Mangor. But after these confirmations and a worldwide announcement from the President, they find a shaft coming from underneath the ice where the meteorite was found. Could someone have planted it there, and if so, to what results? It would freshen up the Presidents campaign nicely, but when signs of extraterrestrial life show up, so does a special ops kill squad, by the names of Delta One, Two and Three? Who is their leader, the mysterious controller, and will what Rachael find out put her and others in grave danger? You'll have to but it to find out. This is a cracking book, and an excellent thriller suitable for teens and adults. I give it five stars, one of the best novels of the modern age. A must have.