A fan on Tumble asked Cassie if there would be any happy snippets for 'Clockwork Princess'. Cassie had a great response:
"Hee. It’s really not. Hopefully there are bits that will be heartbreaking in the right kind of way, but most of the more lighthearted/adventurey bits are spoilery, so I tend not to post them.
I have however been having Cassandra JP illustrate scenes from Clockwork Princess, so consider this a visual snippet/spoiler from a scene about halfway through the book"
This is the amazing picture of Will Herondale that Cassie was talking about. Check out Cassandra Jean's twitter for more great pictures.