There is definitely not meant to be a portal in her house.

(For that matter, portals are meant to be invisible magical affordances, not garish golden swirling objects.)

The smart thing to do would probably be to ignore it, find someone younger and more adventurous to jump through; she could have a number of volunteers just by sticking her head out of the door and shouting.

Of course, they'd all probably die.

She sighs, dashes off a quick note along the lines of 'felt obliged to go through mysterious golden portal, please implement succession plan if no return within a week', checks her mage armour is in place, packs some supplies quickly into her bag, puts on her cloak, picks up her staff.

If she's going to go through because it might not last very long, she's got to stop dawdling.

She puts the tip of her staff through first, to check it doesn't immediately disintegrate or something stupid like that; then an arm, to feel the general conditions on the other side; then her head, to look through...

A giant hand with two fingers is standing in the otherwise normal-looking field! It doesn't appear to be part of actual body.

Right now, the fingers are straightened and unmoving. They don't seem to notice her yet.

Having confirmed there are useful things like 'air' and 'not immediately being poisoned' on the other side, Allegra sighs, takes a longing look back at her bed, and steps through entirely.

She looks up at the giant hand. "I don't suppose whoever left this portal lying around organised a welcoming party?" she says, to the otherwise empty field. Whilst also checking her sight lines for a good direction to run, if running becomes indicated.

The Fingers are confused. Again. Did they do this? Did Greater Will do this? It's too fast for it to be a response their message, but perhaps the Will has forseen it and didn't include it in the plan for the fingers.

The Fingers will ask the visitor a question of "Who are you? Why did you come here?"

To Allegra, this will look like erratic gesticulation, with no apparent meaning.

She can see buildings in a distance, including an impressive set of buildings on a raised cliff, connected by stone bridge to a village on ground level. Closer to her, she can notice a forest, and some rocks that may work as a hiding place should she need it.

Allegra tenses up, ready to dart away, when the fingers start moving, but they don't appear to be making any threatening moves.

"Um. This is the part where I admit I never actually learned any sign language," she replies, after deciding that the movement is probably an attempt at communication.

She keeps looking around for other signs of movement; perhaps a helpful interpreter will spring out of the forest, or something. If that doesn't happen soon, well, as much as she likes forests, the village is probably the most promising place to find out what is actually happening here.

She also experimentally waves an arm back over where the portal threshold was; it's probably gone, but as she's got a moment she might as well check.

The portal's gone.

Suddenly, from behind one of the rocks, a figure appears! It's hard to see any detail on them though.

The figure jumps onto the Fingers, and seems to hit them with something coated in black-and-red flame! The sound is of metal hitting metal.

The Fingers swing at the figure, but miss. They don't appear hurt by the attack. 

The figure will attempt the attack again, with the same result.

This will continue for a few seconds.

Just the one figure...

Well, she was probably invited here by the fingers and it seems impolite not to help them. She doesn't want to get terribly close to that blade, though; she suspects her mage armour won't be much use against it, if it's designed to cut through an entire metal statue.

Positioning herself for optimum fleeing into the forest if she does attract too much attention, she waits until the figure looks like it's about to need to dodge the Fingers, and lets out a very loud scream which she hopes might distract them for a vital moment.

The figure is distracted, though it's hard to notice! 

The Fingers land a strike, slamming a figure into the ground. 

The Fingers straighten, and disappear in a flash of golden light.

...okay, if it's not going to stick around to distract them, she is definitely leaving the area with all available haste; she's not putting much likelihood on 'they feel like talking' after that.

She's not the best sprinter but she's quite determined about it, and she is quite good at dodging trees and making headway over rough ground, if she can get into the forest.

A similar figure will step in front of her, seeming to appear from nowhere.

"Stop! Who are you and what are you doing here?"

While this figure is not moving, she can get a better look at it - it is armored, but very quiet for the amount of armor it is wearing. On top of the armor, there's a semi-transparent cloak transitioning into a hood that completely conceals the face (is there even a face?). In its hand, there's a a black knife that seems to have with a twisted guard, currently not on fire.

Okay, the jig is up, but at least they are talking rather than going straight to knives, so that's positive? She obediently stops, tries to look reasonably non-threatening, insofar as she can without actually giving up the option of frantic parrying if necessary; leans on the staff (silvered wood, autumn leaves growing out of it) like it's a walking stick rather than a weapon.

"Allegra Foundhome, Vate of Navarr. And I wish I knew; a few moments ago, I was peacefully at home..." 

She's not going to mention the portal too precisely unless they do; it seemed to have special effects associated with the fingers, which did not seem to be their friends.

"You are from beyond the Lands Between. And you didn't cross the fog here, so you were called here by the Two Fingers. Answer truthfully: Are you a servant of Greater Will?"

"Absolutely not," replies Allegra, entirely truthfully and quite vehemently.

She stops herself from going on; she wants to add something like 'I don't even know what that is' or 'I am a Guide of Navarr and I do not subjugate my will to any inhuman force' but it's not really clear what will land well and what will just lead to more problems.

"This will do for now. You can call me Circe. Help me get Rhea, and you can explain yourself later."

She will move towards the place where the other figure was struck down.

Allegra follows her; this actually seems somewhat more promising than the incomprehensible gesticulating fingers. "I've got my first aid supplies, if chirurgy might help," she offers, looking at Rhea - is it possible to tell if the figure is bleeding, or unconscious, or otherwise in dire need of medical assistance? She does have some skill in picking up the downed, as long as it's a fairly straightforward injury.

The finger-blow was certainly strong enough to break the bones of a human, but Circe doesn't seem especially worried. 

Rhea appears to be unconscious, but it's hard to tell whether there's injuries, though her armor.

"Do you have something to better carry her with? She will be fine, but I don't want to linger here".

"The staff won't break, if we want to move quickly we could tie her to it; otherwise no," she replies. "If she's anything like human, I can patch her up to wakefulness in half a minute; unless she has something more complex wrong, she'd be able to walk then, or at least help us support her weight."

"Let's try it", and she will stand near, and observe

Allegra takes some strips of cloth out of her bag, and sits quickly by Rhea's body. She looks for any patch of exposed flesh on Rhea, or anything that looks like it might be a promising access to one. "Do you know what the quickest way to expose any patch of flesh is?" she asks, in case that gets her an answer quicker. "Also it might be that the healing involves a small knife - don't be alarmed, it's only to draw my own blood for the sympathetic connection. I can try doing it with mirrors but I prefer to be able to make eye contact to get that right."

Circe will approach and remove one of Rhea's gauntlets, exposing a hand. Human, with slightly pale skin.

That'll do; she takes a small knife from the bag, slides it down the side of her hand, and gently anoints the hand with a drop of blood, then closes her eyes briefly in concentration. Feeling where the wounds are through that weak connection, whispering "My blood for yours, my health to your bones," she ties a couple of the pieces of cloth to the armour nearest the worst affected areas, then braids the ends in a simple pattern, wincing slightly where the work pulls on her own cut.

If Rhea has simply fallen of normal wounds, she'll be back up to just enough health to move around again after precisely thirty seconds of this; Allegra will get to her feet and absent-mindedly lick her own wound, which runs along an old scar that looks like she's done this a lot, and sometimes rather more dramatically.

Rhea will indeed wake up, and look first at Allegra then at Circe.

"She's from beyond the fog, appeared in front of the fingers, and tried to run. Doesn't appear to know what is going on, I plan on bringing her to talk to the Witch".

And to Allegra, "follow me", and she will start walking towards what looks to be a plain cliffside.