Untitled AI art by @yaha21

Main Color Scheme: Deep blue and black, paired with gold or silver decorative lines, creating a mysterious and ancient atmosphere. Background Elements: The Door to the Ruins: At the center of the cover, design a massive stone door covered in ancient runes, appearing mysterious and solemn. The door is slightly ajar, revealing a deep, shadowy passageway with faint flickering light inside, symbolizing the unknown truth waiting to be uncovered. Crystal Ball: Above or to the side of the stone door, place a crystal ball emitting an eerie blue glow. Scattered light effects can be added around the crystal ball to enhance the sense of mystery. Silhouettes: At the entrance of the passage, design silhouettes of Yun Yi, Su Yao, and Yun Yi’s uncle, poised to step into the passage, showcasing their determination to bravely explore the truth. The silhouettes can be in black or dark gray, creating contrast with the background.