Possible New YA Sci-Fi Book

So I've been doing a lot of fiddly things while my laptop isn't working, including drafting (and drafting and drafting) the query letter for Skywatch and thinking about a sequel and worldbuilding for Moxie.

The other project I'm working on is sort of a bridge book between Skywatch and Moxie.  Don't get me wrong--the books have NOTHING to do with each other.  It's just, making the jump from a middle grade steampunk utopia  to a borderline-adult YA superhero is fairly drastic, not to mention the fact that Moxie's still not ready to be the next rough draft in my queue and I'm in need of a book to write.  So I'm working on a sort of for-the-author bridging book: YA, but Percy Jackson-level YA instead of Hunger Games-level YA.  It's also space opera-y sci-fi, a genre I don't write much in but have recently wanted to.

( Process-related rambling. )