From online sources: Searching for a stolen foal, several farming folk inadvertently cross through a gateway into a different world. Not long after, the lord and lady of a nearby keep begin a trip to find the sire of the lady’s empathic cat. They too traverse a gate unwittingly and find themselves in the same strange world.

On the other side of the gate the two groups meet and discover that the world they have entered is in great danger. The foal has been stolen to be sacrificed as part of a scheme to loose a horde of demons upon the world. Somehow the cat and the foal are the keys to the possible salvation of this world, which may prove a home to them and their owners… or their doom.

(Source: Tor Books)