When Chise goes down, Ulysse fears the worst as he recalls the fate of his sister Isabelle, chased into a street by bullies and killed in a car accident. Isabelle never woke up, but Chise does, could see his thoughts, and tells him she’s okay.
Meanwhile, an enraged Elias in his true(r) form tears the chimera of the ageless sorcerer (whom Elia later calls Cartaphilus) to pieces, while Renfred shoots him in the head, giving everyone a bit of time to rest and Elias to return to a less terrifying (and more importantly, shorter) form.
Cartaphilus heals quickly, however, and summons another chimera: this one with the body of a giant spider and the head of none other than Isabelle, to capture Ulysse.
Chise isn’t having it, using her masses of magical power to summon a swarm of tarantula wasps from the ether; Elias warns her not to mess with the laws of nature in such a way, and manages to hold her back, but she’s super cheesed-off.
A blue flame fairy spirits them away from Carty and the chimera to a safe place, and lends Chise a lump of his coal to calm her racing blood.
When Carty appears once more with his Isabella-headed chimera, Chise forms a pact with Ulysse in a stirring ritual to make him her familiar, whom she renames Ruth. Their hearts, minds, and lives now bound together, Ruth attacks the chimera without reservation, knowing the Isabelle he knew and loved isn’t there and won’t be coming back.
Alice shoots off Cartaphilus’s arm, and with Chise and Ruth now in a familiar pact, decides they’re no longer worth his time, and he apparates away. Being an undying force of nature more than a human or beast, may well return if and when his interest is re-sparked.
But for now the threat has passed, and Elias bids that he, Chise, and Ruth all return home, where Chise will be healed, scolded, and told more about everything that went down, as well as the ins and outs of having a familiar.