Sorry to be a pest, but in the comments, did you perhaps mean that Jareth got chills rather than Javert? Seeing as we don’t see the creepy word-person near Javert, but we see them pass Jareth?
(Also, are the boys actually able to see the creepy word-person? Someone else brought it up, and now that it’s been mentioned, I wouldn’t be surprised if they couldn’t see them, seeing as you say they don’t know why they got chills. >>)