When Victor sees Henry Clerval alighting from the carriage he is overwhelmed with joy and happiness. Victor says that nothing could compare to the joy he felt on seeing his old friend after so many months of horror and misfortune.
Victor feels this way because he has been in complete horror and misfortune for so long. When he sees Henry, he is filled with the memories of his father, Elizabeth, and his sweet home. He treats Henry with the most welcoming and warn gesture.
A Dashes are where you would pause. Therefor you would say, "The storm seems to be over (slight pause) (thinking, no, wait, it isn't) no, the sky is darkening again."
