Cornifer is the traveling cartographer from Hollow Knight, the 2017 action-adventure game developed by Team Cherry. Players encounter him throughout Hallownest, usually following a trail of discarded paper and listening for his distinctive humming nearby. Because the melody announces access to an area map, it became closely associated with discovery, navigation, and temporary safety. Fans continue using the clip in gameplay videos, animations, and memes about getting lost, exploring unfamiliar places, or carefully charting a route.