Cranium is a visually captivating novel by Nalan, set against the backdrop of a medical or scientific environment. The story is brought to life through a blend of engaging characters and an intriguing plot that explores themes of discovery and the complexities of human relationships. The artwork for the novel features two main characters dressed in white lab coats, exuding an air of professionalism while also showcasing their unique personalities. One character confidently holds a skull, hinting at themes of life, death, and perhaps the medical field, while the other appears more thoughtful, holding a cup that suggests a moment of reflection. The overall aesthetic combines modern elements and a slightly mysterious atmosphere, drawing readers into the narrative.