Answer: "'I'm not talking about my mother's feelings about my father,' Charles Wallace scolded. 'I'm talking about Mrs. Buncombe's sheets!' The little woman sighed. The enormous glasses caught the light again and shone like an owl's eyes."
Step-by-step explanation:
Proper names such as "Charles Wallace" should always be capitalized.
Additionally, "Mrs. Buncombe's" name should be capitalized as well.
"I'm", or "I" should always be capitalized as well.