Bryan has posted a new Book 3 Change image on his tumblr.
Looks like it is from the same episode as the last one with Mako and Bolin in their pyjamas.
It just hit me that perhaps what they were getting ready to fight in the last image and Bolin is shocked by in this one is spirits roaming around where they are sleeping. Book 3 is set just a few weeks after Book 2 and we know spirits are roaming the world now.
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Has Bolin just seen a spirit?[/caption]