Answer: i believe it should be (-2,3)
It says he wiped his brow, which basically means he wiped his forehead. It sounds like he was running ("had kept a pace or two ahead"). What is wet, and you get while working out? Hint: not rain
Kingsolver's tone shifts to more factual over page 50 and ahead.
It's based on a boy the author saw during her day out with her child