Risotto figures out that Doppio must be a Stand user that the boss trusts in deeply because he’s able to hear the noise from a certain Stand. Risotto then uses his Stand Metallic against him. Metallic is able to control magnetic force and attacks Doppio. Doppio uses the part of the boss’s power he received from him. While they’re fighting, Risotto realizes that Doppio’s personality and actions seem to be changing and he realizes exactly who Doppio is.
Inside the wound where 
his foot was severed...
...داخل الجرح حيثُ بُتِرَتْ قدمه
In der Wunde, wo sein Fuß
abgeschnitten wurde …
Dentro de la herida que le quitó el pie…
Dentro de la herida que le quitó el pie…
Quelque chose bouge
à la surface de la plaie…
Dentro la ferita
dove il piede è rimasto tagliato...
Dentro da parte exposta do pé dele...
Я вижу, что шевелится в его
 отрезанной ноге!