He carried her through the forest, with her still being lifted by the tentacles. She realized they were going back to the site where him and Moody had their confrontation. But rather than go back there, he deviated from the path slightly and went deeper into the forest. After walking for a few more moments, Hermione noticed the same blue glow she and others had witnessed on that night of the accident. It was much less brighter now, but still a brilliant blue.