After Chrollo and the other members of the ghost brigade found out that you knew the "chain bastard" who murdered Uvogin, the 11th member of the ghost brigade Phantom Troupe.

you were tied with chains while the members of Phantom Troupe surrounded you and looked at you with a threatening look. Chrollo, the leader of the Phantom Troupe, approached you with a smile And he leaned towards you

"So... You know the bastard with the chains right?"

Chrollo asked while Phinks was behind him Member number 5 of the Phantom Troupe was approaching you. And also Nobunaga, member number 1, was approaching you from the front, unsheathing his sword but Chrollo understood a hand to stop him

the other members only looked at you with interest, Feitan and Shalnark, But you also felt that one was missing... And it was Hisoka, member number 4. He was an individual who liked to hunt alone so it was not surprising that he was not here. They obviously wouldn't let you go until you convinced them or they would kill you...