Was just rereading, maybe Yatwer was present at Akka and Mimara's first meeting?
Akka was yelling at Mimara, he wanted her to tell him why she had come...
"She flinched, looked down to the childish scribble at her feet: a gaping mouth scrawled in black across mineral white, with eyes, nose, and ears spaced across its lipless perimeter."
The Judging Eye, US edition, p. 48, a few pages into chapter 2.