In the meantime, Bloodfyre and Stormstrider grew to the size of a large dog, and Winter was already as big as a small pony. They started going out to hunt for their own food during the night. Their growth was so ridiculously fast that he had to carefully mediate and inspect what was causing this. By clearing his mind and extending his senses, Jon finally found the reason. The dragons were pulling and feeding from the magic of the Wall itself. He had sensed that magic from the Wall itself had been sucked into the resurrection ritual, but he did not think it would create such a link to the Dragons. The Wall itself was teeming with magic, so the small stream that the hatchlings pulled wouldn't affect it one bit. That would probably change once they started gaining on size, though.