Final answer:
The section creates suspense through descriptive language and a mysterious character.
Step-by-step explanation:
This section creates a mood of suspense through the use of descriptive language and the introduction of a mysterious character. The text states, 'Then around the corner of a side street came an old woman, her head covered by a tattered shawl. She was pointing to the roof where the sniper lay. An informer.' The description of the old woman as tattered and mysterious, along with her actions, creates a sense of tension and anticipation. Additionally, the use of words like 'corner,' 'points,' and 'sniper' adds to the feeling of suspense.