CALL OF HEROES
What I can tell you, is that as a middle book in a quintet should be, it's going to be a payoff for many readers, leading to characters confrontations and conflicts that hopefully at this point you'll have been wanting to happen for ages.
And while Shadow In the Darkness was even darker then the first, very character driven and centered around the growing evil of the Goblingod himself, this was is going to be about war on a very grand scale, even more so than in Ellerigan Quest. Not that it will be over of course, as there will still be two more books to come after this one.
You can see some of the early work for Call of Heroes already in the two sample chapters I have put on this page below. Take a look and enjoy!