RotE quote game...(spoilers all books)

[Farseer]

Ok, then it was the name these beings intentionally left out. Serilla.

Go 'thul beings! Yes, it was Serilla, and taken from the very end of Chapter Thirty-One in 'The Mad Ship'. She and Davad had been on their way to the Summer Ball with the Satrap, Kekki etc. Davad had previously observed to himself that Serilla was wearing a "demure cream gown".

The entire passage that includes the quote:

...He leaned toward her and patted her knee companionably.
'Don't fret about your gown,' he whispered to her. 'I am sure that all of Bingtown will honour you for your position, no matter what you are wearing.'

You drowned in memories.