The River Against the Sea

Some heroes have swords. Essimore Darkenchyl has a pen. But it's a magic pen.
Some wizards have spellbooks. Essie has Gossen's Guide to Shipping Law. But it's a current edition.
Some sailors have . . . experience. Essie has a new diploma and a year-long contract, and her people have won wars with less.
And that's good, because between stolen weapons, a coup, and a strange disease creeping in around her and the crew, she might need to win a war.
The River Against the Sea is the action-packed, sometimes-silly, occasionally-apocalyptic story of a young everywoman (who happens to be a devil) adjusting to life outside of college. In a world that blends traditional fantasy with the Age of Exploration, Essie knows a pen is mightier than a sword, especially since hers sometimes shoots lightning.
But what she thinks is a routine political dispute turns out to be something much, much more, and she may have finally met the one problem she can't talk her way out of.