Marcel closed his eyes, attempting to visualize the fan more clearly. "I remember seeing some sort of floral pattern, and there was a symbol in the centre, but I couldn't decipher what it meant. It all happened so quickly, and the vision was somewhat blurry."
Zadkiel, always analytical, chimed in, "We should research ancient fan designs and symbols, especially those related to mystical or magical traditions. It might help us identify the origin of the fan and potentially shed light on the identity of the man in black."
Cassiel's eyes widened with realization as he spoke up. "Wait a moment. I have a vague memory of seeing a fan like the one Marcel described. It was in an old chest tucked away in the attic of this mansion. I stumbled upon it a while ago when I was exploring the place."