Amazingly exciting stuff. The episode title is "The Corridor of Dreams".
We can see a piece of the broken doll on one of the pages, as Schierke and Farnese bear witness to Casca's memories of the Bonfire of Dreams. Exactly as I expected! They will restore her by collecting these missing pieces. And they do more than bear witness, they even feel what Casca felt at the time. Also of note is that the memory of young Guts at the Bonfire of Dreams is what turns into that part of the broken doll.
Schierke also seems to realize that her gear has been transformed because she's a dream-version of herself. So she's got some miniature versions of her former feats of magic in her pouch that she can just throw on the floor and voilà, MEGA-GOLEM and THE WHEEL OF FLAMES appear. It looks like these will be much needed to fight against an onslaught of flying enemies, too. A part of Casca trying to prevent them from —literally— piecing the puzzle together?
What we see of Guts in the real world is the missing page from the sketches that were included in the guidebook. Guts lives up to his past self here, preferring to stay alone, far away from the party (pretty damn far, too). I can't help but be reminded of his first party with the Band of the Falcon, when Judo and Pippin went to take him down by force so he could join the rest of them. Fittingly, it's Roderick and Serpico who come to him here, each bearing their own burden and reflecting on it (Serpico with how Farnese has changed, for example). Of course, it's also not a coincidence that this parallels his being alone during the Bonfire of Dreams scene either.
Lastly, love the theatrics from drunken Isidro and how the boys seem fascinated by his tales of adventure. Same goes for smug-drunk Isma showing off her tail. And Azan truly does seem to have found kindred spirits in the dwarves too. Can't wait to see the rest of the episode!!