You entered the auction hall with Gon and Killua. While walking down the stairs, you suddenly notice...

...Phinks and Feitan from the Phantom Troupe.

In a moment, the three of you put your feet up.

Gon: Why are they doing here!? Killua: How would I know?!

However, you didn't run far because Phinks blocked your path in front of you, and Feitan was standing behind you, blocking your escape.

Phinks: Hey, that was cold. Feitan: We're not going to kill you.