Monsters aura

She pushed through the crowd, following Crabby into the next car.
The creature’s shell was definitely glowing brighter now. As Annabeth got closer, she started to get nauseous. She felt a warm tugging sensation in her gut, as if she had a fishhook in her belly button, pulling her towards the monster.

By the time Annabeth caught up with it in the next car, the monster’s aura was so strong that even the mortals had started to notice. Many gagged and hunched over in their seats, as if someone had opened a locker full of spoiled lunches. Others fainted onto the floor.