"The League'll still handle the obvious stuff," Flash adds.

"There's a reason we have these big targets on our chests." He taps his lightning bolt insignia with a self-deprecating grin. 

"But Cadmus proves the bad guys are getting smarter."

Aquaman looks about as happy as Batman with this state of affairs.

"Batman needs a team that can operate on the sly."

"The five of you will be that team."

"Cool!" is Nate's verdict.

"...wait, five?" There are only four of them - Rain, Aqualad, Robin and Kid Flash.

"Is Yvette gonna be joining us?" 

"Not currently. Joining you will be Martian Manhunter's niece, Miss Martian." He motions behind them.

A smaller figure who has been hiding behind Martian Manhunter now steps out from the safety of his shadow. 

Like her uncle, she is green-skinned, and dressed in a costume with a red X over the chest. She also seems to have copied the high-collared blue cloak, although the costume under it is blue and white, rather than black. The most obvious difference between them, though, is her long, curly ginger hair. 

Other than the green, she looks exactly like a human sixteen-year-old.

She smiles shyly at her new team. 

"Liking this gig more every minute," Nate mutters to Robin.

He steps forward to greet Miss Martian, grinning broadly.

"Welcome aboard, Miss M! I'm Kid Flash, but you can call me Nate." 

...he thinks she's pretty. She wasn't deliberately trying to read his thoughts—Uncle J'onn told her that's considered rude on Earth—but that one's about her and it's kind of hard to ignore.

And now he's waiting for her to say something. Time to test out the American accent she's been practicing. 

"Hi...it's nice to meet you." Oh, right, handshakes are a thing, they work like this...she's got this. Totally. 

!!!!

She's Martian, and Martians are telepaths! He has ever used telepathy in his life, he doesn't have it, but he can definitely project friendliness and 'hi you can come talk to me' mentally. He does that. He so does that.

Hi!! / Wow you came a really long way to be here! / Are there things you're confused about / Can I help? / Hi!!!!! It's so great to meet you!!!! / ~Telepathy!!! telepathy!!! telepathy!!!~ / I'll give you space if this is too much! New things can often be a lot! / I just want you to be safe and happy and be somewhere you like!

It would be impossible to fake this much sincerity. He is very sincere.

!!!

Hi! she replies gleefully. It's good to meet you too! I wasn't expecting anyone on Earth to be this comfortable with telepathy!  'Comfortable' seems like an understatement. He really likes telepathy!

She sends him her current mood: a little bit overwhelmed by all the new things, but relieved to be using a familiar means of communication. This is definitely helping.

I was raised/grown/taught with telepathy! I miss it, and I'm really really really glad I can talk to you with it! It's nice! And I'm glad that this is helping - do you want context and explanation for all of the new things, I can just send you mine if that wouldn't be too much?

He has not moved since he saw her, in favor of standing right where he is with the biggest smile on his face. He's forgotten that walking up to say hi to her in meatspace is a thing that matters, he's busy saying hi to her.

Robin and Kaldur have gone over to greet Miss Martian and welcome her to the team. 

It's hard to tell, because he's so quiet by default, but Kaldur is maybe a little distracted. He's staring off into space with a vaguely mopey expression. 

Robin, by contrast, is perfectly chipper. 

"Hey Rain, come meet Miss M!" he calls over his shoulder when he notices the other boy hasn't joined them. 

..? That's what he's doing...?

Oh, right. Meatspace. Yeah, okay, sure. He bounces over to aim his brilliant smile at her instead of just aiming his thoughts at her.

...

Batman had a whole 'this is what you will be doing' speech prepared. It has now been sidetracked. In retrospect, this was predictable.

He's just going to wait until they're done.

I think I'll manage, Miss Martian says to Rain, but it's sweet of you to ask.

Smiling! That is the thing humans do when they're happy! It's easier to make the connection when she has Rain right in front of her, smiling and projecting 'happy' at the same time. Learning human body language from television was hard without that sort of cue. 

"Hi," she says out loud, mostly for the benefit of everyone she isn't talking to telepathically. 

"If you don't want to call me Miss Martian, I'd prefer 'M'kel' to 'Miss M'," she tells Robin and Nate. "M'kel M'orzz." 

"You got it," says Nate.

He takes his best shot at pronouncing "Muh-kel. Wow, that has...too many consonants or something." 

Robin snorts. "Wow, rude." 

He grins at M'kel. "Just ignore Nate, you'll get used to him."

Ignoring Nate's indignant spluttering, he leads her over to where Batman and the other mentors are waiting with varied levels of patience. Kaldur follows, as does a pouting Nate. 

Okay! Let me know if there's anything you need!

Rain bounces over to Batman and the other mentors. He's feeling very bouncy, today. Bounce, bounce, bounce.

Awwww. 

Batman begins explaining what will be expected of them; they have a supervisor, but their own organizational structure will be up to them. If they want to have a person in charge, they'll need to pick them. The League will provide them with supplies and equipment; if there's anything they feel they need, they can make a request. Mount Justice will serve as their base of operations and a home-away-from-home for any members that need (or want) it.

And then: security procedures. Such security procedures. Since they'll be working through the Justice League Zeta-Tube network, they will be expected to uphold Justice League security standards. Mount Justice is in the process of being placed under a glamour, so as not to draw attention that it's being called into use again; they should try not to compromise that. Here are the procedures they should follow for trying not to compromise that. Here is where they can find the procedures they should follow for trying not to compromise that later, should they ever feel that they don't know the procedures well enough. They should know the procedures well enough. Ahem.

Batman has a talent for sucking all of the fun out of things, and he definitely deploys it here. This is serious business, they will conduct themselves as such. Fun is not unauthorized, but fun does not come at the cost of their safety. Ever.

After the seriousness of the whole affair is good and impressed upon them, Batman finally releases them. Mount Justice is still being set up for their use, but they can do what they like.

"Yes! Time to go exploring," Nate declares, stretching. Judging by the way his foot has been tapping for the last fifteen minutes, he's more than ready to move. 

"Rain, did you find anything cool yet?" 

"Depends on the definition of cool! There's a waterfall in one room, and a big library, and there's a - cave place... thing... Plus there are a lot of, uh..." He waves his hand awkwardly, trying to figure out his words. To M'kel, he sends an impression of a network of caves and passages and corridors, some of them secret and hidden. This quality is approximately his favorite of the entire base; it's tricky to learn, and there are downsides to it, but it gives them a home advantage in case this place gets attacked. They could run circles around anyone that didn't know the area so well. This helps him coalesce his thoughts, and he explains to everyone else: "Secret passages and corridors and convenient air ducts. It'd take hours to learn them all, I think they're neat."

"I know what we should do."

Robin has a massive grin on his face, which is either promising or worrying. 

Kaldur is opting for 'worried'. 

"...what."