Jiana, hero for hire, managed to accomplish a lot on her last adventure. Indeed more than all of the heroes of Bay-bay and its boy-prince could manage. But life goes on after the adventure is over, and Jiana decides she needs something to give her life direction: she'll take on a new apprentice, and make a perfectly well-adjusted hero out of this one (since her last apprentice fell in with some pretty unsavory company).
But Jiana couldn't pick just anyone: she had to choose a crippled slave girl. And everyone knows you can't free a slave -- slaves have to free themselves. So Jiana has a friend sell her into slavery too, so that she can teach this girl how to become a hero from the bottom up.
This sequel to Heroing still has that fine "back story" slant of what it means to be a hero and again ab Hugh is poking a stick into a archetype -- the slave who becomes a hero story -- but the wit and humor of Heroing, the first tale of Jiana, was not as good this time around.
Or maybe Heroing was just a better read.
Whichever, read Heroing by ab Hugh, and if you want more about Jiana, you can pick up this very good sequel.