Whoa, Scary Fairy!
It was nice to see a Cassandra solo outing, and it was interesting to compare and contrast what she's going through with her newly lengthened life span and what Jenkins is going through with his newly shortened life span. He at least still has the wisdom of several thousand years, and so was able to nudge her in the right direction.
Watching her and her partner solve the Mystery of the Perfect town was like seeing a mishmash of the Hardy Boys and Nancy Drew-- especially with him drawing inspiration from classic literature. I wonder if we'll ever see that kid actually be summoned by the Library.
Maybe Stone and Jones will also get solo stories before season's end.