Is someone trying to give the children clues to a real-life mystery through a computer game?
Henry, Jessie, Violet, and Benny Alden, the Boxcar Children, have become experts at Ringmaster, a computer game, and the creators ask them to help test the new game, Ringmaster II. But when they do, clues about situations and people in the game are surprisingly familiar. Is there something wrong? The children are determined to find out!