Luke, Julia, David, and Isabel are headed to the deck of the doomed Titanic. Their mission? Capture a shot of the sinking ship, then come right back. The only problem is, once they arrive aboard the ship, the four friends can't agree on what to do next. Should they try to save the passengers? Or maybe bring back a priceless book before it sinks with the ship? With real historical photographs to put young readers right in the action, plus back matter...

On a cross-country vacation with their parents, twins Coke and Pepsi, soon to be thirteen, fend off strange assassins as they try to come to terms with their being part of a top-secret government organization known as The Genius Files.