User blog comment:Lia Schiffer/428: The Known/ Imaginary 01: The Unforgivens/@comment-919115-20101126023159/@comment-1268838-20101127074207

Dying in the Icefields was listed as Chapter -16, so I am pretty sure that one is canon, at the very least. Since it's a flashback, it fits into the canon just fine, and unlike this chapter was with Hell Chapter, it really had nothing to do with the DiamondDust Rebellion.