Hisoka was ultimately taken away by the King's Army Soldier.
But if it was only questioning, they probably would not take long to release him. And doing this really did offer greater peace of mind, just as Slaka had said.
At least once the King's Army took him away, Hisoka would no longer provide an opening for others to interfere in the Twelfth Prince's room.
However, this would also expose a problem: once the King's Army acknowledged that someone had suddenly vanished, it would be hard not to suspect that an unknown power existed aboard the ship.
And even if they denied it, the senior Princes' spies within the King's Army would relay Hisoka's information back to them.
When that happened, the senior Princes would very likely devote all their efforts to investigating the existence of Nen Abilities.
And among them, the Fourth Prince remained the greatest concern.
But as long as no one explicitly mentioned Nen Abilities, there would presumably still be some room for the Hunters beside the Fourth Prince to respond.
Yet when Joey thought of the Fourth Prince's Nen Beast, he felt things would not be that simple.
In short, Hisoka's appearance meant that another force existed aboard the ship.
And this force could very well become the key to determining victory in this Succession War.
Joey had already thought of this when Kurapika returned.
But the crux of the problem was that there was no way to resolve it.
Hisoka's appearance had been entirely unexpected, and another reason there was no way to resolve this problem lay with Slaka, the Second Queen's subordinate who had returned with them.
Slaka was a Nen user!
And unlike Bicotte, the First Prince's Personal Guard from earlier, he did not refrain from using En to investigate.
On the contrary,