{October|The month of October|As October|When October} {arrived|came|had arrived|set in|began|rolled in}, {spreading|casting|bringing|sending|carrying|it spread} a {damp|moist|wet|chilly|frigid|bone-chilling} {chill|coldness|cold|coolness} {over|across|throughout|all over|around} the grounds and {into|throughout|inside|deep into|within} the castle{| walls|'s corridors|'s interior}. {Madam Pomfrey, the nurse,|The nurse, Madam Pomfrey,|Madam Pomfrey, who served as the nurse,|The school's nurse, Madam Pomfrey,|Madam Pomfrey, the castle's medical caretaker,|The castle's medical witch, Madam Pomfrey,} {was kept busy|was kept occupied|remained busy|found herself busy|became occupied|had her hands full|was working tirelessly} {by|with|due to|because of|as a result of} {a sudden|an abrupt|an unexpected|a rapid|a swift|a dramatic} {spate|outbreak|surge|wave|increase|rise|influx} of colds {among|amongst|within|affecting|plaguing|troubling} {the staff and students|the students and staff|both students and staff|students and staff alike|the castle's inhabitants|those residing in the castle|everyone in the castle}.
{October|The month of October|As October|When October|With October's arrival} {arrived|came|had arrived|set in|began|rolled in|approached}, {spreading|casting|bringing|sending|carrying|it spread|there came} a {damp|moist|wet|chilly|frigid|bone-chilling|penetrating} {chill|coldness|cold|coolness|chill factor} {over|across|throughout|all over|around|upon} the grounds and {into|throughout|inside|deep into|within|through} the castle{| walls|'s corridors|'s interior|'s chambers}. {Madam Pomfrey, the nurse,|The nurse, Madam Pomfrey,|Madam Pomfrey, who served as the nurse,|The school's nurse, Madam Pomfrey,|Madam Pomfrey, the castle's medical caretaker,|The castle's medical witch, Madam Pomfrey,|Madam Pomfrey, who tended to the castle's medical needs,} {was kept busy|was kept occupied|remained busy|found herself busy|became occupied|had her hands full|was working tirelessly|barely had a moment's rest} {by|with|due to|because of|as a result of|attending to} {a sudden|an abrupt|an unexpected|a rapid|a swift|a dramatic|a concerning} {spate|outbreak|surge|wave|increase|rise|influx|epidemic} of colds {among|amongst|within|affecting|plaguing|troubling|spreading through} {the staff and students|the students and staff|both students and staff|students and staff alike|the castle's inhabitants|those residing in the castle|everyone in the castle|all who dwelled within the castle walls}.