The Jewel of Atlantis is a crystal and the primary power source of the ancient city of Atlantis. First appearing in the DuckTales reboot television special "Woo-oo!", it lit up when Gabby McStabberson's throwing knife activated one of Atlantis's traps, which resulted in flooding the entire treasure chamber. Scrooge, Donald, and Dewey stopped the room from flooding by removing the Jewel from the ceiling pedestal and brought it back to Duckburg where the Jewel can be used as a clean and efficient energy source for the city.