Legion can barely see Corpse Girl even if he focuses

The dead man squinted at the air next to Madelyn. Then its gaze flitted to the left and locked eyes with her. She took a quick step back.
“There you are,” the ex growled. “All fuzzy and blendin’ in, but I see you.”
St. George snapped his fingers. Legion glanced at him, and when the pale eyes swung back they went past Madelyn. The dead man scowled and took a few more steps back.

Excerpt From Ex-Communication, pg 346
Peter Clines
https://books.apple.com/us/book/ex-communication/id635706546