A bioluminescent jellyfish, the size of a small car, floats serenely through the ruins of a sunken library. Ancient books, their pages shimmering with residual magic, are scattered around it. Shafts of ethereal sunlight penetrate the water, illuminating the scene in a soft, otherworldly glow. The jellyfish pulsates with an inner light, casting dancing shadows on the decaying architecture. The entire scene is rendered as a hyperrealistic digital painting, focusing on the intricate details of the jellyfish's delicate form and the texture of the aged books. A wide angle shot reveals the scope of the underwater library, a testament to a forgotten civilization. Dominated by a cool, blue and green color palette, with subtle hints of gold from the magical books. Hyperdetailed, 8k resolution, a true masterpiece.