It is capitally Decided, then.
The Navigator floats out of the room it once occupied, its slimy, simultaneously sluglike and prunelike body undulating as it squeezes through the doorframe. Noticing Katherine standing about questioning the blue creature, its tiny, rudimentary limbs twitch excitedly.
"Bloody hell, that was easy! Usually they stick the Nexus in some fecking den of arseholes and tedious shite you have to wander through for billions of feckin' years before any progress is made. And then every one of you heroic feckers become dead or comatose, and then the whole feckin' thing falls apart. Glad to see the bloody feckarses in charge are seeing reason at last."
It pauses, its cold, wet, opaquely-lensed eyes staring at Katherine for an uncomfortable moment.
"Right, you're the Nexus and I'm the Navigator," it says, bobbing in Katherine's direction. "And the rest of these feckers are basically your new retinue. And now that they've heroically found you, questing can begin."
"Excuse me, what sort of questing are we-" Grrpipi asks, but the Navigator cuts him off.
"Oh, would you look at this fecker!" it says. "Barely even physical, he is! How'd this bloody bastard get in here?"
"Well-"
"Oh, shut it. I know you don't know. Well, you can't be part of the quest, yer gert big arsebiscuit. You're too magical and spiritual. Wouldn't want the Nexus to feel jealous of your dumb, unfortunate arse or lack thereof, would we?"
"I say..." Grrpipi begins before suddenly vanishing from existence without so much as a dramatic poof or bamf.
"Hate these clueless magical feckers. Now, I hafta guide all of you wonderful people to adventure, I suppose?"
One of its stunted little legs twitches in the direction of a nearby boarded-up door - the door, for lack of a better term, suddenly detonates, though there seems to be blissfully little shrapnel. A soft light emanates from the now unblocked archway, and a rather thick fog seems to begin rolling in as well.
"Through that door is some feckin' adventure. I'm sure you've got questions, though. Am I right? If you've got any questions, preface them with whoever you are so I can remember your name."