Mirror Dreams — Catherine Webb

Every dream you've ever had, and every dream yet to come, exists in the Kingdoms of the Void. Every nightmare, too. Because there has to be balance -- it's the rules. But the Lords of Nightkeep aren't big on rules -- only Conquest, Fear, and Eternal Darkness for All. It takes a powerful wizard like Laenan Kite to keep them in check. But Kite has other worries, and Nightkeep is growing strong. Its Lords hunger for power. And they've turned their gaze towards earth.