As they came out of the forest, they saw a big contraption like the one that their teacher had drawn. It was sitting right where the Gulu-Gulu River met Lake Vinogo. The teachers said,“This is a drilling rig. It drills a hole in the ground trying to find the Yellow. When it finds the Yellow, the workers put the Yellow in big trucks or boats, or pipe it to the Yellow factories. They use the Yellow to make things like plastic, footballs, and fuel for boda- boda motorcycles. Sometimes when they hit the Yellow it can burst out of the earth, just like if you poke a hole in a milk sack or let air out of a balloon.” 25