Kiss of Love & Revenge (3) (愛と復讐のキッス その③ Ai to Fukushū no Kissu Sono 3), originally An Unknown Power (未知なる力 Michi Naru Chikara) in the WSJ release, is the six hundred forty-seventh chapter of the JoJo's Bizarre Adventure manga. It is also the fifty-third chapter of Stone Ocean.
The invisible bird attacks Ermes, pecking and clawing at her face. Ermes uses Kiss to attack it, but all her attacks miss as the bird flies around her. The bird pecks at her and pulls out a vein. Ermes duplicates her jacket and covers the bird with it. Now aware of its location, she crushes the bird with her Stand; the taxidermy corpse of the bird on the table falls apart. Ermes deduces that Maxx must have gotten his Stand from Whitesnake.
However, since Maxx has nothing to do with Jolyne or Jotaro, Ermes assumes he must have had a different purpose for gaining a Stand. In anger, Ermes kicks at the pipe which Maxx is trapped in, and notices something moving on the ground. She looks over to see a stuffed crocodile, who charges toward her as she promptly runs away. Ermes jumps up and grabs onto a hanging pipe. As she dangles above the crocodile, Jolyne and F.F. approach, unsure of what's going on. The crocodile charges toward F.F. and bites off her leg.