Zelda: Phantom Ganon down and the Deku Tree and Korok Forest are fixed. We get a memory about Link and Zelda retrieving the Master Sword and... wait was the Master Sword in need of recovery after the end of BOTW? Why was it here lol? Anyway, he tells us thanks to a programming oversight it can actually have infinite power so I'm just imaging Link's incarnation in like 2 billion years swinging it casually and leveling a continent. Back in the present he asks Link where it is and Link, I assume, tells him "funny story" and the Deku Tree reveals a never-before-seen ability to just detect it at will. Apparently it's moving around in the sky. Anyway *that* gets flagged as a Main Quest so when I inevitably find it during later exploration I'll try to ignore it. Probably.
Also, while I was in the Depths, found a Coliseum with the item that will never leave Link's head except when I'm pretty sure some important cutscene is about to happen because it really ruins it otherwise - based Korok Mask.
Currently off exploring the Gerudo Highlands (not the actual Gerudo zone the one north of it.) Also fought and defeated a White-Maned Lynel. we've come so far.
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May you find your book in this place. Formerly known as xp1337.