The person hiding in the mirror was Illuso from the Hitman Team. Fugo ends up being dragged into the mirror by Illuso's Stand, Mirrorman. Fugo then summons his own Stand, Purple Smoke. Despite Giorno wanting to find Fugo, Abbacchio decides to go look for the key, since that was their mission. However, once Abbacchio finds the key, he also gets dragged into the mirror world...
B-But I blocked its punch...
...لـ-لكن تصدّيتُ لِلكمته
I-Ich habe den Schlag
doch abgewehrt …
Pero detuve el puñetazo…
Pero detuve el puñetazo…
P-Però avevo bloccato il suo pugno...
M-Mas eu defendi o soco dele...