"Okay..." He blinks. "Uh, crystals - the ones used for my magic - can connect to you and then grow and absorb things and turn them into crystals. And once they absorb something they can then be used to duplicate it. If you control the duplication you can use it to create new - differently-shaped - things. At a some moderate level of skill you can create an empowered crystal of your own, which a power of your own. Like granting telekinesis or manipulate energy." Pause. "None of us is trained in it. We have been mostly trying to self-teach." He raises a hand, the index and thumb have crystalline tips.

"Well, I may as well learn too, then; care to teach me how to start?"

"Uh. Would you mind telling us who are you and how you got here?"

"You can call me Lucy, and as for how I got here you should ask the book rather than me, not that I think he'll answer.  I just got spontaneously yoinked.  It's a good thing I was actually packing for a trip at the time."

"The book?"

She waves the book at them.  "This obviously magic book?"

"I haven't ever seen an obviously magical book before. I am sure someone could've made it, but I am not sure how it is done without using crystals."

"Magic, clearly," she snarks.  "Are y'all at least half-dressed yet?"

"Oh. Just give me a moment. Uh, can one of you-me...?" He says to a fellow copy.

"Sure, I was listening." says a copy that managed to appropriate a pair of pants. "So, what do you know about the magic book? All we saw was it jumped at your face before both of you fell to the ground."

"Barely more than you, but apparently it's an explorer's journal.  And can do translation magic."

"I guess the latter is obvious, given how you have started making sense after it did whatever it. Oh, you introduced yourself, but I-we didn't. I am Henry... So are the others mes."

"Gabes here."

"Vera and Vera."

"Claudia. Nicknames pending."

"A pleasure to meet yous."

"...So what did y'all do before the surprise spaceship crash?"

"Me and Gabe were just manual laborers."

"Originally, we are going to be a clerical worker. When the ship got stuck, I-we got a job as a nanny." One Vera says. She got a shirt that goes almost to the middle of her knees.

"The original Claudia was also going to do that too," says a Claudia, in the tones of someone that is tired of pronoun confusion. "But then got an apprenticeship to learn magic."

"Only got around to learn the very basics before the ship got moving and then crashed," says the other Claudia.

"Well, at least you have the basics!  Goodness knows if I was out here without magic I'd be fucked.  So, uh...heard there was magic?"

"...Sorry, I've just never actually had an opportunity to learn real verifiable magic before, y'know?  Please excuse my honestly rather ill-placed excitement at the prospect?"

They sort of look at each other. Claudia gestures cryptically at the nearest Henry. The Henry talking to Lucy takes point. "If you really want to learn magic. I guess, you have the benefit of being well-fed." Flinch. "Sorry, that wasn't a slight at your weight, but we haven't figured out how to make magic a net positive in calories." None of them look starving, but they are thin. "But I guess I can teach you, and we could start by duplicating your things."

"Might be a good idea to seal anything fragile in a crystal case."

"...Well, if we can find edible plants I bet we can rig up a half-decent greenhouse and get calories that way.  And yeah, no offense taken, in case you were worrying.  I've been meaning to get in shape for a while anyway."

"We will get on to it. It only has been a week. There had been enough fruits though"

By this point, everyone has acquired enough clothing to be modest, if not dignified. And they bring the suitcase over.

"Are you squeamish about pain? The to connect to a crystal, it needs contact with your flesh." The Henry raises his index finger and the crystalline fingertip extends like a needle.

"...Not too squeamish for needles.  Do it."

He gently holds her hand and prickles the crystal needle in the index finger. "All good. Are you comfortable enough you can focus?"

...She has Opinions about just where to poke her with needles, and redirects him towards her bicep, sliding the needle of crystal in rather deftly and wrapping his hand around her left forearm, presently propped up on her suitcase.

"Yes, I'm comfortable.  I'm guessing that I go about meditating or something now?  I'm kind of congenitally allergic to meditation proper, but I can still focus."