Not just.. tentacles and darkness. Perpetually changing, not cemented in form, with an otherworldly feel to it. Completely unrecognizable by most human descriptions, and only able to be viable perceived by those fine enough to be an adept wordsmith.
Madness string 84048
Toddlers are curious and rambunctious. And they have no fear, because you have to teach them what's dangerous. Until you do, they are little danger machines.