User blog comment:Chrisler claus/Chrollo Lucifer is dead/@comment-9409640-20140617050513

The exact words Irumi said to Hisoka when they met at the election was "A lot of things were going on while you were playing tag with Kuroro."

With this, what might happened is that Hisoka successfuly brought the Jyonen to Kuroro and dispelled Kurapika's Nen and then the Boss escaped like a sir (remember he has a skill of teleportation like he did on yorknew arc). Maybe that was the reason Kurapika is back to the scenes again having a mad face because of that fact that his Nen was removed.