Holly- Mesmered Sight

  “Are you sure they’re mesmerized?” he asked Holly, who was hovering overhead.

  “Of course. Their minds are so blank it was like writing with chalk on a board. But I could stun them, if you’d prefer.”

  “No,” panted Artemis. “No trace. There must be no trace.”
...
  They walked right past Artemis without seeing him. And why would they see him? Holly had mesmerized them not to notice anybody out of the ordinary on this floor, unless they were specifically pointed out to them.

-The Eternity Code, Chapter 10