The Killing Song by Don Bassingthwaite is an Eberron novel published in 2006 by Wizards of the Coast . It is the third and final book in The Dragon Below trilogy, following The Grieving Tree . It sees the end of the quest for Singe , Natrac , Geth , Ekhaas , Orshok , and Ashi d'Deneith and their confrontation with the copper dragon Dah'mir and the daelkyr known only as the Master of Silence .
Sealed away for ages, a forgotten horror reaches out for new power.
Three heroes know the danger. In the City of Towers , a tormented mystic and a soldier-wizard try to thwart a monstrous scheme. In the Shadow Marches , a disgraced warrior summons an ancient sect to battle.