Answer:
After
Step-by-step explanation:
The only capitalization mistake in this passage is "after." This word needs to be capitalized because it is the first word in the sentence. The first word of a text should always be capitalized. "Ron Weasley" is correctly written in capitals, because this is a proper name, and proper names also need to be written in capital letters at all times. The rest of the nouns in the passage are common nouns, and therefore, do not have to be capitalized.