Undoubtedly the best collection of short stories thus far in the Sun Eater series. Nearly every story had some element that was compelling, and there was more of a central theme to each story along with the usual supplemental worldbuilding. The prose really felt fully up to par with the main series as well. 

I loved getting a story from Otavia's perspective; she's dearly missed. The secrets of Echidna and the contact with a Monumental was fascinating, as was the story involving the Mericanii. And the last story was amazing, the final paragraph incredibly moving.