I liked this a lot again, the settings, the story, the characters, the style of writing. Especially the Syl Anagist part.

I still can't make sense of a lot of stuff though, mostly guardians. If they're already semi-controlled by earth through the needles, what exactly does the "contamination" change? Schaffa's transformation seemed pretty dubious to me. Also why is the group of contaminated guardians still on guardian business like purging antarctic fulcrum? How do they get to Corepoint if they can't travel through the core? I didn't think Stone Eaters would transport them? There's probably some other means of transportation but still. Some more questions that I forgot.