A stag with the colour of starlight jumped out of his wand, but it was not the familiar Prongs. No, it was the large stag of House Baratheon, with the crown around the base of its neck, and it angrily charged at the hungry darkness. The stag gored it with its horns, but it didn't seem to do anything but slow the monster. A frown appeared on Jon's face as beads of sweat pooled on his brow. The Patronus was nothing more than a powerful agglomeration of positive emotions, and it seemed that it was not enough.