Legion sensing Exes, losing them to Cairax

For a moment he considered looking back at the Mount. There were almost ten thousand exes within a block of the Big Wall. He could sense them in a basic way, like someone knowing they were wearing shorts or going commando without checking. He just knew where they were, all through the city. It wouldn’t take much effort to reach over and see through their eyes.
Whatever attacked him had taken his exes away, though. One moment they’d been there, the next minute a bunch of them were gone. He could still see them, but it was like part of him had gone numb, like a cripple looking at legs that weren’t part of him anymore. They’d become something else.

Excerpt From Ex-Communication, pg 371
Peter Clines
https://books.apple.com/us/book/ex-communication/id635706546