Final answer:
The provided excerpts do not explicitly state what Craig was focused on during the party, but suggest a deep contemplation or a search for understanding about something significant.
Step-by-step explanation:
The question asks about Craig's focus during the party. From the provided excerpts, it doesn't provide specific details about Craig's thoughts at the party. The first passage describes a man who seems to be reflecting deeply, listening to the sounds of the market and considering the lives of passersby with a sense of finality.
The second excerpt paints a picture of someone scrutinizing a writing-table filled with various items, searching for something that raises suspicion. Neither passage explicitly states what Craig was focused on during the party. However, both passages suggest a deep sense of contemplation or search for understanding about something significant and possibly life-changing.