It has been years since Bryce and Ashley have been to their hometown. This trip to Chicago presents a new mystery when a family friend disappears. Can they unravel the clues and find him before it's too late?
Bryce and Ashley Timberline are normal 13-year-old twins, except for one thing--they discover action-packed mystery wherever they go. Wanting to get to the bottom of any mystery, these twins find themselves on a non-stop search for truth.