Cassie added, "Before anyone starts thinking City of Heavenly Fire is an uninterrupted series of makeout scenes, the next spoiler art has no kissing. "
Cassie has been sharing spoilery art created by Cassandra Jean now that The Infernal Devices has come to an end, preparing us for yet another end with The Mortal Instruments series once City of Heavenly Fire sits book shelves next year. She said, "With Clockwork Princess now out for a month, I’ve decided it’s time to start mixing up answers about Clockwork Princess and cut scenes with a few teasers for the last book in that other series. This teaser isn’t words, it’s art by Cassanda Jean."
For a look at the other art pieces shared so far check out Cassandra Clare's Tumblr page.