Huh. Felix takes flight and tries to disperse the rest of the smoke away.

There is sudden movement and a frustrated snarl from below him, as the big cat pounces on the place where he was standing and finds him gone.

 Some of the smoke is blown away, briefly increasing visibility and allowing him to get a glimpse of the panther, but more quickly rolls in to obscure the view again. The smoke doesn't seem to want to be dispersed. 

What the hell? What if he tries harder? Where did the panther go?

Visibility-obscuring coils of black smoke continue to insist that they are a Feature Of The Landscape at the moment, please try again later.

The panther is circling around in confusion, and then thinks to look up. Felix himself may not be very visible through the smoke, but his little fireball is much easier to spot. The big cat rumbles up at him and lashes its tail. It is very clear - possibly magically so - that it is annoyed at him being out of its reach.

Yeah that is weird. "Hello? Can you understand me? I'm here to help."

The panther's stance shifts from 'hostile' to 'wary'. 

Why don't you come down here, then, it 'says' with a tail-flick.

"Okay, since that I'm immortal that won't be a problem for me. It might be a problem for whoever is dreaming this pocket dimension into existence."

Curiosity, and a desire for elaboration.

Also, the panther would like to express the opinion that Felix is failing to see what is right in front of him. 

"I don't know exactly how it happened, but I'm from a different world with a different kind of magic. That allows one to create a pocket dimension that is overlapping but separate from normal space. The magic is called dreamshaping and when someone first gets it they can't wake up on their own unless their projected avatars leave the pocket dimension."

This results in sceptical tail-lashing.

Then, with the feline equivalent of a shrug, the panther motions with one of its front paws for Felix to lead the way. 

"Once you're through the portal you're going to wake up." Felix leads. "There is another person that got the power too and I'm going to need to rescue them as well."

The panther takes one last look at the burnt-out building, then turns away and pads silently after Felix.

It is alarmed by the news that a second person is also in need of rescue! It speeds up to a bounding run, glancing over one shoulder at Felix to make sure he can keep up.

The portal isn't very far. Felix watches to e sure the panther is going to disappear once it goes through.

The panther looks at him hesitantly for a second...

...then steps through the portal, vanishing between one footfall and the next. 

Cat wakes up with a jolt. He takes a moment to recognize his surroundings.

...oh. He fell asleep in his sister's room, with Rae herself curled around him. Neither of them has been sleeping well these last few weeks, but right now she's fast asleep. 

A little shard of grey quartz rolls off her shoulder and lands in the space opened up between them by his movement. 

Time to investigate pocket dimension #2.

He finds himself standing on a rugged, windswept moor. The morning mist is beginning to clear, revealing a hilly landscape dotted with bare, scrubby trees. The hillside falls away down into a valley, through which flows a river. 

Half hidden behind a ridge, further along the valley, is a large, rather gloomy-looking house, half in the shadow of the crags that rise above it. It fits perfectly into the landscape, almost as if it grew in place rather than being built. 

In the sky above, a few birds are circling.

Felix joins the birds in the sky, circling around to see any signs of intelligent life.

There don't seem to be any people visible from the air.

...one of the birds seems to be - not quite following him, but circling in a way that means they are always in the same part of the sky. 

Another animal projection? Well, Felix looks meaningfully at the bird. "Hello? God, I'm going to feel so silly if you're not the dreamer."

"Dreamer," it croaks. It might just be mimicking him. 

The raven laughs, long and loud and cackling, and starts circling lower. 

"If you're this place's dreamshaper you won't wake up unless you go through a portal. I'm here to rescue the dreamshaper."

The raven perches in a tree, settling itself with a ruffle of feathers.

It looks up at him expectantly.

"Uh, do you have any evidence that you're at least sapient and the dreamer? This pocket dimension grows the longer the dreamshaper sleeps."

Without another word, the raven takes off and starts flying towards the place Felix entered the dimension, completely ignoring his question.