The Crime of Lingering Echoes

A mystery-solving novel with soft sci-fi emotional elements, this story builds a distinctive world: when people die, their innermost emotions crystallize into physical objects called Echo Stones. Hatred, fear, love, and grief each take on different colors. By touching an Echo Stone, a psychometric reader can access the deceased's final memories and emotions to solve their murder. But a transparent, hollow White Noise Echo Stone signifies that the victim's emotions have been completely erased by someone, and it is the key clue in the story's central murder case.