Final answer:
The author's descriptive sensory language creates a contrasting mood and tone, with vivid imagery of the setting and character expressions shaping the story's atmosphere.
Step-by-step explanation:
The author's use of sensory language significantly shapes the mood and tone of the story. Descriptive phrases like the 'broad lake invited all the rays to come and rest upon her' create a serene, inviting atmosphere, juxtaposing it against 'the forest shut out the sunlight and scowled upon the ground.' Such vivid imagery allows readers to feel the stark contrasts in the setting, thus building an immersive environment that's both mysterious and beautiful. The mention of 'little Ruky Lynn's' bright face peering into the forest adds a sense of innocence and curiosity, while his sister's 'gloomy' looks cast a somber mood over the otherwise sunny lake.