The Family Sketch is an item completed in Central Stairway C with the help of the Sketch Piece and Torn Sketch. It gives the hint to unlock the third box "Family": 112. Jennifer then finds the News Article. The sketch depicts a red bird, a green bird and a yellow bird added together to form the code. Examining the walls of the 2nd Passenger Corridor will reveal the numbers for the birds: * red bird = 55 * green bird = 45 * yellow bird = 12 55 + 45 + 12 = 112