A dark, moonlit forest scene shows a group of cloaked travellers walking along a dirt path. One figure carries a small glowing lantern. Ahead of them, an enormous dragon skull lies on the ground, its eye forming a magical portal. Through the glowing circular opening, a bright daytime landscape is visible with green fields and a distant castle. Below this scene is an underwater city illustration: several transparent dome structures connected by tubular passageways sit on the ocean floor, illuminated by soft blue lights. A diver in a sleek wetsuit swims toward the domes, while a small submersible with a spotlight glides overhead. Particles of glowing plankton drift through the deep blue water.