Sarah J. Maas adding to Court of Thorns and Roses, troon of Glass series 

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, EW can exclusively announce. Maas will publish six new additions to

Two new books will join the previously announced sixth and final book in

, about a beautiful assassin fighting for her survival. The new works will be a novella about the character Chaol Westfall and a compendium titled,

, which, according to Bloomsbury, will be “the ultimate guide to the Throne of Glass series and the world of Erilea, including an illustrated compendium of characters, settings, magic, gods, politics, creatures, and vocabulary, plus a timeline of events.”

will be a coloring book, also due out in 2017. The other five works will publish beginning in 2018. The series follows a young huntress who is taken captive by faeries in a treacherous, magical land.

Maas is slated to appear at San Diego Comic-Con, where she will sign books. See the schedule below.

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