You were caught stalking the Phantom Troupe, along with Gon and Killua. You were after them for the bounty over their heads. You needed the money to buy Greed Island.

Phinks, Nobunaga, Machi, and Pakunoda led you, Gon, and Killua into the run down building that the Troupe was staying in.

Gon noticed Hisoka and yelled, "Hey," but quickly decided to play dumb.

Nobunaga noticed and glanced at Gon.

"What? Do you know someone here?" Nobunaga asked, looking at the two boys.