As said in the story in paragraph 2 "When he had gotten the thing out, he said: "This is very curious." Which will give you a feeling what are they curious about? As stated in paragraph 3 "Effie stood holding her handkerchief to her eye, and said: "I don't believe it's out.", As he said " it's" which mean we don't no if it's a female or male, or human at all!, After Effie's father had the "it" removed from her eye he said " This is very interesting". What is very interesting?, So it must have been something unknown. In paragraph 7 the "it" is identified as a Four well-developed limbs; a long caudal appendage; five toes, unequal in lengths, almost like one of the Lacertidae, yet there are traces of wings, that are a bat-like wing. Then the father took a quick look at the creature, and told Effile the the creature is a dragon! They mystery is what was in her eye?, what made is so interesting?, and why were they so curious?, because the mystery is actually a dragon!, and is there more of them?..
Top-down processing refers to how our brains employ facts that has already been brought into the brain by way of one or greater of the sensory structures. Top-down processing is a cognitive technique that initiates with our thoughts, which float right down to decrease-degree capabilities, including the senses.