My rating: 4 of 5 stars
This is a boxed set of master/slave books. Although the slaves were happy with their lives and their masters, I think this is going to be the last master/slave book I read. It made me uncomfortable.
The universe has mages, and their different types of magic were interesting (necromancy, healing, etc.). The stories were very similar, so reading them one after the other got a little tedious.
If you don’t think the slave thing will squick you, Dark Heart was definitely the best of the books. And Mage Luke and Tam show up in a few of the other stories.