Nultūk began to open and close his mouth, as if speaking, but no sound came out. He appeared to curse, then released the dagger that he was holding, which turned into a puff of mist. He began to hastily sign to it, and moments later, a spren popped up beside his head and began to speak. "Hello! I've come here looking for books on perfect gemstones. You wouldn't happen to have any, or a perfect gemstone your self, would you?" the spren asked.