Guildpact

Don't be fooled by the title of the book. Guildpact is name of the 2nd expansion set of the Ravnica block (Magic: the Gathering card game) and really has nothing to do with the story. It is actually a continuation of the plot from book 1 and is told from the perspectives of Kos (book 1 protagonist), Teysa (a young noble), and an intelligent goblin. It does highlight the special traits associated with the cards of the 3 guilds that were released as part of the expansion set.