Kaybmcc

Also, in chapter 3 of "The Hero of Ages", Vin refers to herself as "The Final Empire's knife", then in chapter 21 she says that "She belonged to the New Empire. She had been it's knife". It seems that the reference in chapter 3 should also be to Elend's new government, not to the Lord Ruler's.

I'm not sure if this is what you're looking for, but there are some variations in Allrianne's age between books. In "The Well of Ascension" chapter 36, when she barges in on Clubs and Breeze, she says "I'm eighteen, not ten". However, in "The Hero of Ages", chapter 10, Sazed says that her dress "made her look younger than her twenty-something years" when she was approaching His and Breeze's delegation. However, this being only a year after the previous story is set, wouldn't she only be 19? Also explainable if Sazed is just guessing at her age, but it seems like something he would know.