"Just tell me when!"

If distance is the thing, she can do distance. She runs faster. (She can't keep this up for long, but she just needs to be far enough for long enough - )

And eventually she is.

"Now!"  The cat leaps out of her arms.  "Make the wish!"

"I wish for Kaylee to be fully healed to perfect health and safe from further harm." Lianne's terrified and angry and she's never wanted anything more in her entire life, this better work.

Whatever the cat has coming out of the sides of its head, it can move them like appendages: it plants them on the sides of Lianne's head, and it begins to glow, and she begins to glow, and suddenly there's light everywhere and - 

 - she's changed somehow, dressed differently, lighter on her feet; the maze of incoherent passages suddenly makes a kind of sense, not like she knows her way but like she could find her way; she suddenly knows exactly how to pull a weapon from thin air.  She can probably find the portal that took them here.

"She's healed and out of the Barrier - you're a magical girl now, you can fight the witch!"

She moves as if unsheathing something from her back, producing a massive sword that could easily double as a shield. Somehow it's light enough she can hold it with one hand, though she instinctively goes to wield it with both.

This is weird and increasingly likely to be a dream but she's in the mood to fight.

"How do I do that?"

"Right now you're inside the witch's Barrier.  The witch is somewhere inside the Barrier, probably near the center - magical girls all have a knack for navigating them, it shouldn't be too hard to find.  The rats are the witch's familiars, they should be easy for you to take down now."

...Well then.

She lifts the sword, and goes looking for this witch.

The maze does make more sense now.  The passages still aren't consistent, but now she has some kind of sense of direction about the place - this fork will take her nearer the center, that one toward the edge, a third toward the portal.

A pair of rats the size of great danes bar the next passage; their heads explode open into teeth and tongues.

She swings her sword at them once they're in range. 

One is slashed open and crashes to the ground; the second is neatly bisected.  Both explode into clouds of spidersilk.

Yeah this isn't getting any less bizarre, is it.

She continues down the passage they were guarding.

Nearer.  Nearer.

This is probably the place.

A vast room, storeys and storeys high, with an enormous water heater, of all things, dominating the center.  Clusters of lightbulbs hang from the ceiling or nestle in the corners of the room like egg sacs.  There are a handful of additional rats, smaller than the ones she's seen so far, surrounding the water heater, almost prostrating themselves before it.

There is something shaped like a human child, but much too large, bound in spidersilk, hanging upside down from the ceiling of the room.  It is laughing.  Spiders crawl over its face and body, all hair-thin coiling legs.

...She's guessing the laughing thing is the witch. Either that or the water heater.

She eyes the room, trying to plan out how this'll go, and gears up for a fight.

She's not a trained fighter (she'll have to fix that if this is real), but she's fast and her new senses must count for something.

The witch might be the whole setup, actually.

The laughing thing starts to rock back and forth, and then thrashes around deftly in such a way as to send itself pitching toward Lianne like a flail.

She dodges and swings her sword as it passes to try and kill it.

The sword leaves a deep cut in the laughing child, but then it spinslides across the edge of the blade and away from her, cackling all the while.  The water heater lets out a shuddering metallic groan when the blade makes contact.

A few of the rats have noticed her, and are barreling towards her.

The laughing child is coming around for another swing.

She moves away from the swinging path again, tries to time attacking the rats (she can just kick them in the head, right? If they're small enough? Or take them out with a swing if they group correctly) and the child-thing so she's not facing both at once. 

One of the rats explodes when she kicks it but the other two just tumble backwards.  She should still have a split second to get in another slash at the child if she can spin around fast enough.

She spins as fast as she can, sword held close-ish to her body until the last moment when she uses her momentum to add power to her swing.

This time the sword cuts clean through the child-thing, and the lower half faceplants into the ground while the top swings wildly away.

The outer layers of the child-thing's cocoon explode away, revealing a torso and arms mummified in silk.  It grabs at the ground and heaves itself toward her, sailing through the air - 

She raises her sword, plants her feet, and prepares to swing.

The blade sinks into the thing's flesh before it can reach her, and it screams.

Mid-swing, the rats reach her.  Teeth sink into her back.  It doesn't hurt as much as she would expect.

(It wouldn't be effortless, but she thinks she can heal herself.)

She moves the sword so it skims past her back, hoping to catch the rats, and spins around. If the wounds are major or about to interfere with fighting she'll heal herself, but otherwise she needs to pay attention to the fight.

They would be for a human, but she's managing okay.

She catches one of the rats.  The other one scampers backward in time and then goes for another lunge.

She tries to stab it.