Family Trade, The Bk 01

In a world where alchemy exists and history didn't quite go the way that it did here, there is the Float, formally the Free Republic of Thessalia, an ocean-borne city that's at the center of business and commerce. And on the Float is the Family, a sprawling network of thieves, con men, and assassins with one goal: make sure the Float keeps floating.
Jessa Wynn, their youngest member, is about to learn just how dirty a job it is when she finds herself in the middle of a plot that threatens the stability of the Float. And to make matters worse, she finds she cannot do the one job required of her: killing.