Fences of Bones

Someone has unleashed the Dark Mage's most murderous creations – the sirens. Orc drums and elven horns sound over Orcigard. The Paedwanks and the former Hounds of Tourain roam the land, killing and enslaving, leaving only fences of bone behind them. The half-elf Thompson is no longer fighting just for himself. If the Duchy of Barro falls, the non-humans will not survive for long. The Child of Destiny must be saved, and time must be bought for them.
But the price of that time is the blood of friends. And the treacherous sorcerer Orichalkian may not be entirely dead. But who is the real traitor?