Atlantis: Echoes of the Abyss

The scientific research vessel "Poseidon" is drilling in the "Poseidon Ring" trench area in the North Atlantic. During an accidental salvage operation after extreme weather, they pulled up a crystal attached to the drill bit from an unprecedented depth, not of any mineral known to Earth. It has a smooth surface, flashes of light inside, and continuously emits a low-frequency, regular pulse signal. In the laboratory, a tentative laser spectrum analysis accidentally activated the crystal. A clear holographic image was projected - a beautiful-looking but endlessly sad woman in ancient costume (Crito) spoke and spoke in a language she had never heard before. There was a dead silence in the laboratory, and then unprecedented shock and enthusiasm broke out.