Darius wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were added before each test flight. As each paper clip was added, the plane was tested to determine how far it would fly.

There is a graveyard at the entrance to the city. Crows like to land in the tombs to hear the agonizing cry of souls, or the sigh of peace brought by eternal rest. Darkness dominates the place, due to the illumination in this part of the city. The silence and the chill wind chills the visitors' souls, curious about the dark and morbid atmosphere of the place.