The Sea Where Smoke Can Be Seen (1953)

A boy plays in the sand on a beach. He notices smoke rising from the slag heap of a nearby coal mine. A young woman appears before him and speaks gently to him. In her, he glimpses the image of his deceased mother, though she relates to him like a sister. The next day, he returns to the same spot, waiting patiently for her to reappear, only to find a marble buried in the sand.