Legend tells that the Cave of the Great Bell holds the fabled Great Bell, located at the "center of the Rock". Gobo finds it in the Fraggle Rock episode "The Bells of Fraggle Rock" using his maps and a little help from Cantus. Gobo is shocked to find the physical cave is devoid of any real bell, but learns the real "bells" of Fraggle Rock are located in each and every Fraggle.