When Master Kongou finally wakes up from his slumber, it’s from a strange dream in which he is in the center of a mob of Lunarians, and destroys them all with a kind of chakra. He regrets sleeping too long.
Jade, Bort, and Diamond then brief him on everything that’s happened, including the snail eating Phos, mining and reconstructing Phos from the snail’s shell, and the fact that only Phos can understand what the creature is saying, leading everyone to think Phos has gone crazy.
In defense of Phos, we can hear the creature too; their name is Ventricosus, king of of the Admirabilis, and in her current form, she’s pretty cheeky (she’s also voiced by Saito Chiwa).
Despite the indignity of a tossed Ventricosus landing on his head just right, Kongou not only believes Phos, but uses Phos as an interpreter to initiate a dialogue with the creature. He orders Phos keep the creature close while continuing work on the encyclopedia (at present, the amount of work Phos has done on that is…naught).
When Phos speaks on Cinnabar’s behalf, Kongou interrupts, stating that not only is he still working on the matter (and has yet to find a solution), but that it was Cinnabar’s decision to go on night watch to begin with, going into exile rather than sit around HQ doing nothing. It’s not ideal, but Kongou maintains the best way Phos can help Cinnabar is by doing what he ordered: work on that encyclopedia. Later, Phos and Venty get to talking, and Venty mentions that there is someone who resembles the Gems back in her homeland under the sea.
Phos, not making any progress on the land with Cinnabar, decides it’s work a look, and prepares for the trip by applying a salve to the “skin” that should protect the finish from the saltwater. Rutile tattles on Phos, and Kongou categorically forbids such a trip, reminding Phos to do what he asked and not worry about Cinnabar for now.
When it’s clear Ventri isn’t getting the proper nutrition she needs away from the sea (Phos even believes Ventri has died momentarily), Phos and Ventri have a very in-depth discussion on the nature of death (something neither the immortal Phos nor any Gem may can fully grasp the finality of), then Phos breaks the rules once again and heads underwater.
Once on the sea floor, Venty suddenly transforms into a beautiful jellyfish-queen form, and here is again where the 3DCGI fluidity really shines. Now closer to home, Venty starts to remember certain information; a kind of oral history about a race called “humans” who walked the earth.
Things happened, and humans split into three distinct forms: flesh (Admirabilae like Venty), bone (the Gems) and soul (the Lunarians). “Vague stories” also point to the fact that the Lunarians are seeking a revival of humanity by uniting the three forms, capturing them by force.
While that’s their goal, the “flesh” in the equation are content with their existence under the waves, while the “bone” would clearly prefer not being attacked from the sky all the time.
Alas, Ventricosus is hiding something, and exploits their newly-formed bond to deceive Phos. There is no malice in her actions, but her brother is being held by the Lunarians, and she means to offer Phos in exchange for his freedom.
With the sun almost down and Phos greatly weakened, the Lunarians prepare to capture Phos, smashing Phos’ arms and legs. But I’m sure Venty’s betrayal hurts far more than Phos’ loss of limbs, and the fact that Phos once again needs rescuing after disobeying Kongou’s commands to try to help Cinnabar.
It isn’t just the animation that’s beautiful in HnK, although it certainly is that; it’s also very well-written and performed, with a wealth of clever quips in the dialogue and some surprisingly profound discussion on the varying natures of existence of the three kinds of beings.
It remains a mystery what happened to humans, or what exactly Kongou is besides caretaker to the Gems, but if we take Venty’s stories at face value, we now know a lot more about why things are the way they are in this world, and have a clearer picture on the Lunarians’ goals.
Not that that puts them in the right; despite being human myself (I think), there’s something sinister about eliminating three new forms of life that emerged naturally for the sake of reviving one. It seems reckless and hubristic; akin to swimming against the waves of evolution.