The Yale Society for the Exploration of Campus Secrets (YSECS) is a four-year secret society located at Yale University. They are known for uncovering and archiving the history of Yale's campus^[1][2] by finding hidden truths and secret rooms, researching university lore, and exploring campus mysteries. They are rumored to possess knowledge about all of Yale's rooftops, tunnels, and other hidden places as well as much of Yale's forgotten history. Members are chosen through a highly selective application process in which candidates explore Yale's campus and discuss with members what was found.^[3][4][5] Once tapped, members are entrusted with all the knowledge society possesses. Members have been kicked out due to breaking society rules and the bonds of secrecy. However, they are also known to promote healthy, constructive peer engagement through their shared love of exploration.^[6] All members are said to have a group-mandated mark somewhere on their bodies. The society is run by a body called "Vox", which comprises the Chief Exploration Officer (CEO) and the Chief Information Officer (CIO), as well as other positions.^[7]