My review from Amazon:
High Fantasy with a Steampunk Edge
Here's a king who rules with magic until it slowly breaks him down and kills him. Egon, his son, has to take the mantel of magic he doesn't understand yet. And he must banish Jady, the only woman he's ever loved.
Mix in a jealous princess in an arranged engagement, a technophile outsider whose steam-driven iron machines embolden him in his "manifest destiny," a magical self-aware pool with bad intent, and a fanatical horde marching to the orders of a cryptic ancient document, you get, well, Rast.
I have a couple of nits to pick. There are a few too many sentence fragments and exclamation marks for me, and a couple of character elements bear names similar to those in other works, just enough to make me notice.
On the whole, though, I really liked it. The characterization was good, with well-rounded characters I got to know. The heroes had flaws and self-doubt, but did their jobs anyway. I thought the world building well done. Little details, like spells having physical characteristics made it a little richer.
Christopher Hoare knows how to knit together a story with multiple viewpoints and tie it up in an ending I didn't see coming.