How we cite our quotes:
It was always a bad idea to be first into battle. The soldiers in the rear were the ones who tended to survive. He was guessing that Hekate's guards had massed just beyond the invisible wall, and he had no inclination to be first through the opening. It didn't make him a coward, he reasoned; it just made him careful, and being careful had kept him alive for many hundreds of years. (25.1)
Well, Flamel says there's no shame in fear and that retreating is sometimes the best option. Is that what Dee's doing here? Just being practical? Since he's a villain, we're inclined to think a little worse of him. He may think he's not being a coward, but Shmoop thinks that doesn't sound all that convincing.
Sophie's eyes opened wide and she smiled, and Josh suddenly found that, for the first time in his life, he was frightened of his own sister. He knew that this wasn't his Sophie; this terrifying creature could not be his twin. (28.20)
First Josh is frightened that something bad might happen to his sister if she is Awakened. But now that she is Awakened, he's frightened of her. Where Josh's fear is aimed sure says a lot about the changing dynamics between these two twins.
Bastet's fur was bristling and her bare arms dimpled with goose bumps. Then she slowly backed away, turned and raced toward the burning Yggdrasill. For the first time in millennia, she was frightened. (28.30)
See, Shmoopers? Even goddesses get scared. What's so great about this scene is that it tells us that fear isn't really about power; the powerful and the powerless feel fear just the same.