I don't know how else to explain it, so I'm giving an example. This excerpt from my story got me wondering what was proper. (Faarthen is talking to Jack, just to clarify the excerpt)

"I don't know. The last thing I remember was a very long flight across water. I must have blanked out here and there. Then I remember being dropped onto sand. Then a terrible pressure in my mind and the laughter of a woman." Jack saw Faarthen cringe visibly at the memory. "That laughter, it was so- so chilling, so hauntingly familiar. I must have passed out again, for when I woke up I found myself tied to a post on this lovely beach and you bound beside me."

Should...Jack saw Faarthen cringe visibly at the memory.....be a separate paragraph is what I'm asking. Thanks.