I received a copy of this book through Goodreads' First Reads.
I waited to read the book till I got a copy of the first book in the series - and I'm glad I did. This is definitely a case of one-story-split-into-parts, not just stories that happen to be set in the same world. As with the first installment ('Six Heirs') the ending leaves the reader hanging... but I pretty much expected that.
As the story opens, the group of six is fleeing assassin-priests. Their goal is to stay alive, and find out who it is that wants them dead, and why. To this aim, there is much weapons-training, magic-learning, and investigating.
For those who enjoy classic fantasy, with both feet planted firmly in the tropes of the genre, I'd recommend this series.