Heiji and Conan tell the others about Someji's murder in the woods, near the pond, and ask them to call the police. They all go back to their rooms waiting for them, and the two detectives wonder if the monster they saw really exists. As they learn more interesting things about Charles Abel and what happened some years ago, they hear the Nue's cry once again and another blaze is set, as if by magic, in front of their eyes. As everyone open their windows to see what's going on, Tanzawa suddenly yells in pain, collapsing in his room. Conan and Heiji rush to his room and thrust it open, finding Tanzawa died of mysterious poisoning, probably from the Nue's venomous snake-like tail.
File 961 - The Revealed Fangs of the Nue
The police turn up and actually Yokomizo, and not Yamamura, was called to intervene, as the place is closer to Shizuoka than Gunma. Though, Heiji and Conan are disappointed to note he's just as superstitious and stupid as Yamamura at the end of the day. They expound him on the events and the police try hard to investigate "real" murders, while everything just shows they've been committed by a non-human being. Looking at Charles Abel's former dog, and finding some very relevant clues here and there, Conan and Heiji deduce who the killer really is.
The culprit is Fumie Masuko. She faked the Nue by putting fake fur on the dog and used the fired she created with metallic sodium and a painting of the wall of the house to create an optical illusion. She also stabbed Someji several times in the back to make it believe in Nue's scars, and she used a fizzy drink to target poisoned needles towards Tanzawa's neck to kill him from the outside, as if it were the Nue's tail's work. Fumie admits she killed the two victims because Charles Abel was her husband and the two didn't save him back then, and did not even regret it. Heiji also reveals that Hajime is the son of Fumie and Charles.
Heiji tries to confess his feelings for Kazuha along the black pond, which is actually revealed to be full of ferrous stones shining like gold at daylight, explaining the poem's meaning and the legend of Tokugawa's treasure. But he is disturbed by the Japan Air Self-Defense Force landing nearby on the orders of Yokomizo to capture the Nue and secure civilians. Surrounded by soldiers, Heiji decides not to confess. Some time later, the high-school student Momiji Ooka reads about the case on her smartphone and calls Heiji her future husband.
Ms. Tomoyose Kimika, a widow, asks Jirokichi Suzuki's help to open a trick box named 'Tree God' made by the artificier Samizu Kichiemon. Ms. Tomoyose's husband died a few days ago, but never told how to open it to her and kept the paper containing the method in one of the books in the library. The box contains the world's biggest moonstsone, 'Luna Memoria'. Kaito Kid is said to be after it.
Jirokichi makes an announcement to exhibit the box. Okiya says he will not be coming as he is uninterested. Someone takes pictures of Okiya and Agasa as he heads out for the exhibition. Kid is seen taking picture of Jirokichi, while disguised among the security as one of them.
Kogoro tries to break open the box, but instead gets hurt by a popped needle. Agasa shows his bandaged fingers as well.
Okiya visits the exhibition, saying he was allowed to enter just by mentioning that Agasa is his friend. Jirokichi demonstrates how the box can't be stolen due to the weight sensors, which releases a cage that traps the thief. Ms. Tomoyose says that upon opening the box, a nursery rhyme melody is heard.
Jirokichi says that Kid sent a mail, accepting the challenge to steal the jewel.
Okiya remarks about finding the paper hidden in a book. Jirokichi leads them to a studio containing about 10000 volumes.
The instructions to open the box were hidden on the Nikujaga recipe page of one of the cook books. Kimika never needed to read those, since she learned her husband's favorite Nikujaga recipe from her mother-in-law. Inside the box there were the moonstone and the two pages of diary that Kimika and her husband shared during high school.
A new teacher is introduced in the detective boy's class. She seems nice, but is rather clumsy. During break she approach the detective boys and ask them to help her finds limestones in an abandon building. But instead they finds the remains of a skeleton and a headband with strange characters. The police concludes that it's a thief who had an accident around ten years ago, but the headmaster tells of a robbery nearby the school, where the owner was killed and a lot of gold was stolen.
File 967 - Impossible to Decode!?
Conan explains the code is actually ciphered as a "scytale" : when writing a code horizontally on a strip of paper wound around a cylindric object, and then unwinding it, that makes the code unreadable to others. Conan tries it however in any direction but fails to decipher the code. Hopefully, thanks to Haibara's hint at the class's time schedule, Conan finds out the truth, as Rumi Wakasa strangely and quietly observes him.
Rumi about to attack the robbers.
The robbers trap the DB, Rumi and Shiratori, and order them to go down the basement. Rumi trips on the stairs and accidentally knocks down a robber, closing the basement's door in the same breath. As the DB take fright and try to thrust the door open, the robbers get infuriated and threaten Rumi. But the latter grasps a broom and shows them her true face and character : a devilish and fearless fighter who challenges the robbers to come along and be ready to die. She probably beats them up as the scene is not displayed to us. The DB eventually open the door and find their teacher screaming in fear, apparently having knocked down all three robbers just by shaking a broom in every direction. Rumi says she's indeed very lucky.
People
Man #1
Mysterious man that Shinichi and Ran met 10 years ago
Ran, Sonoko and Sera are out buying swim suits. Sera picks one that triggers fracture memories in Conan. A man saying 'It's scary. Like being possessed by something'. A woman saying 'Possessed by a shirigami'. A man asking 'Who are you?'. And a girl with snaggletooth saying 'A wizard'.
