Bakemonogatari manga volume 19 features story by Nisioisin and art by Oh! Great.

Koyomi finds himself in the purrilous grips of the "Afflicting Cat," all while reeling from Hanekawa's shocking confession. And just as the world around him darkens, a familiar face emerges from the shadows to tame this furious feline. But with the sudden appearance of Koyomi’s savior comes a few more surprise guests…