October arrived, spreading a damp chill over the grounds and into the castle. Madam Pomfrey, the nurse, was kept busy by a sudden spate of colds among the staff and students.
{October arrived|October came}, {spreading|casting} a {damp|moist} chill {over the grounds and into the castle|across the grounds and into the castle}. {Madam Pomfrey, the nurse,|The nurse, Madam Pomfrey,} {was kept busy|was kept occupied|remained busy} by {a sudden spate|a sudden outbreak|an abrupt surge} of colds {among|amongst} the {staff and students|students and staff}.