But this act also releases Nathair Sgiathach , an ancient dragon that the Sidhe had bound to Cinniuint , the Tree of Swords and Jewels .
His last act is to blow three times into the horn , which summons the Daoine Sidhe .
This act also releases Nathair Sgiathach , an ancient dragon that the Daoine Sidhe had bound to Cinniuint , the Tree of Swords and Jewels .
His last act is to blow three times into the horn , which summons the Daoine Sidhe .