Midnight at the Taj Mahal (The Out-of-School Adventures #1) http://www.yabookscentral.com/media/reviews/photos/thumbnail/200x285s/17/dd/45/14362_midnight-1354288518.jpg
First stop, India! Hailey and Zach are entrusted with the magical diary of Shah Jahan, legendary builder of the Taj Mahal, and find themselves not just traveling the world but traveling back in time, on a mission to free the shah and his princess daughter from their prison tower.
With the help of their new friend, Sushil, anything seems possible. Can they help the shah win back his rightful place on the throne? Time is running out! Will they succeed before their parents’ work in India is done, and it’s time for them to move on?