All signs point to 'go see Saraqael', so at Agla's beckoning, Rita also looks up.

"Looks like it's safe now," she tells the others. She didn't exactly tell them the webs were there in the first place (it was hard to tell, with how much magic was already in the ceiling itself), but Rita figures some might have suspected a trap was laid in their way.

With that, she gives Childermass a glance (though he seems to already be on his way), focuses on her own reflection, and vanishes with the others.