Chise insisted that Elias not accompany her on her camping trip, because she wants to learn how to take care of herself. Elias proposes a compromise. He makes a smaller, dog-sized duplicate of himself that isn’t very strong. Chise shares her tent with Lucy, and while fetching water from the lake, meets an each-uisge, a white water horse that drowns anyone who tries to ride it. She makes sure to warn Lucy not to get on any horses she sees.
While Chise really wanted a more independent trip, she’s still comforted by the presence of both Ruth and Lil’ Elias, which quiets the voices she’s not sure are neighbors or those of her classmates. But there’s something out there lurking in the sea.
The next morning, Chise makes a Philomena sighting, but she scurries away after exchanging good mornings. Lucy doesn’t understand why Chise is bothering with Mena; Chise sees a bit of herself in her. Lucy, however, hates all sorcerers, which makes sense if they killed her family.
The last night of the trip comes before Chise knows it. Lucy says she has to study as soon as they’re back at the College. She says she has important things to do, “unlike” Chise, but Chise says there are things she needs to do too, only she’s not certain if she’ll ever be finished. Giving Lucy a taste of her own medicine, rather that say what those things are, Chise simply says goodnight.
Later that night after going to the bathroom, the pages of a magical book turn, and Lucy ends up passing out on her way back to the tent. Chise wakes up to a sudden magical disturbance and locates Lucy, who has been completely drained of magical power. Chise is a veritable font of magic, so simply holding Lucy helps her recharge, but she and Elias have bigger fish to fry: a nuckelavee, a giant centaur-like amphibious monster.
Ruth returns with the boys when Chise and Elias are running away from the nuckelavee, and while Zoe’s head snakes temporarily stop the monster, he soon passes out, and it’s on the move again. Lil’ Elias calmly reminds Chise that he’s in a form that can’t defeat something like this, so it’s up to Chise. That said, he can offer her advice and information on their opponent, who cannot touch fresh water.
Chise has Elias summon the each-uisge, and she and Rian hop on its back. This serves as an enticing lure for the nuckelavee, which gives chase all the way to the freshwater lake. The each-uisge dunks Chise and Rian, then kicks the nuckelavee in too.
It starts to disintegrate, as the fresh water is poisonous, but not before it’s able to grab Chise. It almost kills her, but in a gorgeous sequence, the dragon that dwells in her blackened arm awakens with one purpose: to destroy the “horror” before them.
The arm essentially has a mind of its own, and it confidently slashes the nuckelavee to bits. Chise swims to shore, where Rian is holding the each-uisge from attacking her with a magical axe. Chise isn’t about to let the water horse eat her, but she snips off her ponytail for it to each, and that appeases it enough for it to return to the depths of the lake.
On their way back, Chise isn’t just sporting a new-look with her hair, but her face. Only Rian recognizes the face, because he’s seen it many times before…in his mirror. It’s the face of someone who didn’t know what to do when things took a turn, and they certainly did take a turn suddenly here!
Chise was saved thanks to Elias’ knowledge of monsters, Rian’s brave stand, and most importantly that blackened dragon arm of hers, which certainly did know what to do. But this camping trip demonstrated that even when she’s not looking for trouble, trouble finds her, and she wasn’t in control when it mattered most.
The thing is, Chise shouldn’t be so hard on herself. That dragon arm isn’t going anywhere, for one. Even if Elias isn’t a a true groom, he’s still committed to being her lifelong companion. And she continues to bond with her new friends at College. The times when she’s ever going to be totally alone, able to rely only on herself, are vanishingly small.