In order to protect Trish from the Hitman Team, Bucciarati and crew's second mission from the boss was to go find a key in Pompei for some kind of vehicle that should aid them later on. Following orders, Giorno, Abbacchio, and Fugo head to Pompei to retrieve the key. When they get there, Fugo notices a suspicious shadow reflecting in a mirror that happened to be placed on one of the pillars there...
I control the inside of the 
mirror... That's my ability.
أنا أتحكّم بداخل المرآة... هذه هي قدرتي
Ich kontrolliere das Innere des Spiegels.
Das ist meine Fähigkeit.
Controlo el interior del espejo,
ese es mi poder.
Controlo el interior del espejo,
ese es mi poder.
Mon pouvoir me permet
de régir le monde du miroir.
Io controllo l'interno dello specchio...
È questo il mio potere.
Meu poder é controlar o 
interior deste espelho.