Night settled on me as a veil as I limped out, not to make me invisible to eyes but to mask my presence.

It was a weave taught to me by Andronike herself, a use of Night inspired by a spell that’d once been a favourite of the Twilight Sages: I would be seen as unremarkable, and details of me would be difficult to remember.

...

He cast a searching look on me, and I was unsurprised to realize that my veils of Night were nothing more than puffs of smoke to those eyes.

- Book 6, Chapter 44: Cliff