A literal cult to Yog-sothoth with japanese pseudonyms, that seems to have a shoggoth in the basement that is as they are poised to do, guard something, or is a means of communicating with the powers that be, and possible means of producing gemstones that once channels with even minor piety and innate ESP can be used to heal and gestate life- much in the way a cult of Shub-Niggurath operates with farm-based sacrifices and rites for good harvests-they feed ne'erdowells to it in any case, the cult is currently gaining power, and they have the blessings of two outer gods already- Gig and Yeb or whatever, though they may be avatars or some lesser version channeling them because of the cult's small scale that operate some for of interrogation and torture- but the jist of the cults practices involves presumable gestation of a field of interference by stimulating human brainwaves on higher conscious planes the ilk of lovecraft;s works like to traverse- as use of the rituals and practices of the contents of the necromonicon can attract unwarranted attention from what appear to be the deep ones- who aren't very fond of humanity in general- killing them psychically if they try anything- so stimulating the amygdala (From beyond)and some of the baser human instincts and behavioural patterns allows for protection when speaking prayers, and rites in the tongues of the old gods. Currently, the MC clearly has a higher form of lifeforce- and he and his sister are already long-term members of the cult with likely non-humann ancestry- and with the incest accounted for, we're looking at a Wilbur Whately situation come the introduction of a mountain- bar the possibility there is a temple in the shoggoth lake. The REAL interesting part is that the if what the children are saying is true, the cult is structured in such a strict manner as to prevent Warp-incursion tentacle-rape fuckups you'd associate with this sort of organized madness, and seems to be aiming to elevate humans, or rather that sect within the cult compound to a favoured position in the grand cosmic scale- similar to the favour certain alien races received when they rang up an outer god and got a 'congratulations' eldritch boon/gift basket for it- as to avoid the whole BE YEETED FOR CTHULHU'S NEW MANSION ESTATE nihilist business that most of the doomsday cults aim for when buggering about with the words of Al Azif- but that said, that may just be due BS fed to them, and it's 'apocalypse as usual' for the higher members of the cult. As for the 'R'yleh's- not sure if those are eyes, or a literal sea of Deep Ones who are partially submerged in an astral state, like a net, looking to pull a russian sea devil on dipshits who try to summon without 'essential salts' magic circles, elder signs, or a stimulated fuckfest.