This book follows after the short story “Sword-sworn”, which was first published in Sword and Sorceress III. This is a rather episodic account of (some of) the adventures of Tarma and Kethry.
It begins with them making their way back to the Dhorisha Plains. After that Kethry insists on getting a familiar. Warrl, the “familiar”, decides that Kethry doesn’t need him, so he bonds with Tarma. Then they set off to work as mercenaries. They have a series of adventures, making money and a name for themselves. In particular they banish a demon and clear out a particularly vicious bandit infestation. Then the bandit has the demon summoned for round two. Along the way they learn, more and more, how to be a team.
Allowing for the episodic nature, rather like the short stories that make up most of the Tarma and Kethry tales, it is an excellent book.