Tears of Requiem. Requiem: Song of Dragons, #2

The nightshades cover the land. Demons of smoke and shadow, they fear no sword or arrow. They suck the souls from all who live, like a glutton sucking marrow from bones. The world falls under their darkness. But the nightshades crave more than random ruin. The souls of mere humans will not sate them. They seek dragons. Requiem's last dragons, a mere scattering of survivors, have fought off men and griffins.
But how can they fight the nightshades, creatures they cannot cut or burn?____________THE REQUIEM SERIES: Requiem: Dawn of DragonsBook 1: Requiem's SongBook 2: Requiem's HopeBook 3: Requiem's PrayerRequiem: Song of DragonsBook 1: Blood of RequiemBook 2: Tears of RequiemBook 3: Light of RequiemRequiem: DragonloreBook 1: A Dawn of DragonfireBook 2: A Day of Dragon BloodBook 3: A Night of Dragon WingsRequiem: The Dragon WarBook 1: A Legacy of LightBook 2: A Birthright of BloodBook 3: A Memory of FireRequiem: Requiem for DragonsBook 1: Dragons LostBook 2: Dragons RebornBook 3: Dragons RisingRequiem: Flame of RequiemBook 1: Forged in DragonfireBook 2: Crown of DragonfireBook 3: Pillars of DragonfireRequiem: Dragonfire RainBook 1: Blood of DragonsBook 2: Rage of DragonsBook 3: Flight of Dragons