"Or, alternately, I could conjure a scale model of the defenses." She does that.

"...rigged to explode, and hard, wow. That's interesting. They'd only bother with that if there's something that'd deter us from blowing the planet up - is it inhabited -"

She conjures the planet.

"What the fuck."

"Hmmm?"

"This is my planet."

"...I am pretty sure I summoned you from an alternate dimension."

"Yes, but these continents are exactly the same."

"I'll take your word for it. ...if it's got the same kind of person, how hard are they going to be to persuade to evacuate?"

"...Depends on what point in history." She conjures a mini inhabitant-of-planet. It's human. "Fuck."

"...and if 'persuade' isn't doing it, how hard are they going to be to forcibly evacuate..."

"Depends even more on point in history."

"Great. Want to make some scale models of the rigged-to-explode setup and see if some combination of you and your sister can defuse it nondestructively?"

"Sounds like a plan."

To make a long story short: They can't.

"Got a plan better than 'show up on Earth and explain, evac, promise to build them a new Earth and everything'?"

"Nope."

"...and a plan for afterwards, so he's not resummoned immediately?"

"...Check to see if he's got some kind of summoning protocol in place already, first of all." She conjures all summoning circles for Melkor from the last year.

Nothing.

"So it'll happen once his orcs notice he's missing, but it's not done routinely by default."

"Yeah. As long as we summon him promptly on destruction of planet it should be fine."

"Let's have the circle ready...check the one used to summon him by that summoner, I don't know if Melkor's his real name..."

She makes the circle.

And they set the fleet for the summoner's planet.

Right. She really hopes this goes well.

"Can you conjure up some samples of the major local languages so we can learn it before we arrive?"

She conjures a bunch of stuff.

"...I speak most of this," she announces.