midnight
`` Again before the dawn he climbed into the tower , and , listening when the voices of the world were still , heard clear and sweet , like far-blown elfin horn , another summons . '' ` Ederyn ! Ederyn ! One awaits thee at the midnight hour beside black Kilgore 's water . Keep tryst ! ' `` Again to gain his squire 's permission he toiled with double care . This time his task was counting all the spears and halberds , the battle-axes and the coats of mail that filled the earl 's great armament .