The Heart of Atlantis is is the name of a large, "living" crystal underneath the temple at the center of the island. The massive gemstone has an unknown composition, with modern science still unable to identify all of the components that make up its matrix. The energy it radiates is also not completely understood, but the heart is attributed with the calm weather around Enigma University, as well as many of the other phenomena that make the island the unique place that it is.