When he comes back from sleep the King of the Noldor is bouncing up and down with glee. "I think we got it."

That is sufficiently adorable that Leareth has to osanwë Maitimo the picture of it through his eyes. :I like your father when he is studying magic: 

Then he looks at the threshold. "...I think you may have. That was much faster than I expected. Congratulations, you are very good at this." 

If that was surprising to Leareth there was probably a communications failure somewhere but he's not going to worry about it right now because this is more fun. "All right, go fetch the host, I need my Silmarils back."

"It took my first teacher five Years to develop a permanent Gate-terminus," Leareth says. "When I re-engineered it later – knowing most but not all of the process – it still took me a Year. In any case, I am not sure if they are going to be ready to move quickly and I am definitely not sure we want a hundred thousand of them coming through these caves. We can pass a message to them to coordinate, and then you can have your Silmarils back until we are actually ready to go and know where to put them. Also I likely want to build a much bigger doorway that will fit their horses and supplies more easily." 

"I'd like to go through and speak with them, now. Then the rest of that sounds good."

"I will need to know where to put the other end of the Gate – I think Nelyafinwë would know where might be good." :Maitimo, do you want to come plan with your father before he goes in to talk to Nolofinwë?: 

He comes in. "I can send you a location, sure. What're you going to say -"

"That it was never our intent to leave any Noldo behind in departing Valinor, and we will build a kingdom safe for all of them, and kill Melkor and avenge my father."

"I hope you'll repeat it for us later."

"Someone'll take notes or these aren't my people."

I think it'll be all right, he tells Leareth. It's really - the one blind spot -

Leareth isn't sure. He gets the location from Maitimo, though. And, just out of paranoia, grabs his better scrying-artifact and checks the area for suspicious magic sources or anything else weird. And gives Fëanáro his extra shield-amulet just in case. Then he raises the Gate. 

And he strides through and speaks to the people. 

Light, the Valar promised us, when they plucked us out of their cradle and carried us to Valinor. It was not enough compensation for everything we lost in that journey. It would not have been, even had it lasted forever. But now, darkness levels the whole world, and we have only to ask, will we entrust our hopes that Melkor will be defeated to Melkor's brothers? Will we sit here and  mourn forever and hope that paradise is rebuilt by greater hands?

I have asked myself these questions for a very long time. When I found the answer, Melkor worked to make it hard for you to hear it. But you should know it, now, as you're leaving to fight him. There are no greater hands. There is no one more capable of this. There is no one worthier of this. There is not even anyone else who will bestir themselves to do this. If the world is to be safe, it will be safe because the Noldor made it so; if the world is to be free, it will be free because the Noldor made it so. 

We depart in five days. Leave your treasures; you will make more of them, and greater ones. Say farewell to bondage, but say farewell, also, to ease. We will pursue Melkor to the ends of the earth. We will destroy all of his works, all of his evils, and all who have aided him. The war may last as long as the false peace with which the Valar purchased it, but we will not tire, and we will not yield, and when Melkor and all who chose him are destroyed, we will build a paradise that demands of us, not our subservience, but our greatness.

Leareth waits, smiling slightly. 

He has a lot to say on this topic but will restrain himself because Melkor tracing this Gate would be disastrous. Back home. 

Leareth takes the Gate down. Carefully undoes the linkage with the Silmarils, in a way that would be very easy to put back again, and indicates to Fëanáro that he can take them. 

"I think we should consider where to put the other end for the main run," he says. "I would prefer it not be here in the case where it is traced, but...that would require moving the Silmarils elsewhere. Briefly. What do you think?" 

"I go with them, and we drop them off with the main host."

"That seems workable. Though it may take long enough to transfer people across that, if Melkor does have a way of detecting my magic, an attack could be mounted. We had best be prepared and on guard." 

"Of course." He takes his Silmarils. He is not oblivious to the fact Leareth could steal them but he would like to at least ensure this requires violence and is very unambiguously theft. 

Good on him, really. Leareth had just been thinking that Fëanáro was trusting him an unreasonable amount. The man knows how to do paranoia but it tends to be aimed in a few specific directions. 

He can spend the next few days working on assemble-able components for a much larger 'permanent' threshold, big enough that if they're very organized then maybe they can get the entire host through in less than a day. He also throws more time into various wards and shields, he'll be there in person as well to guard them but he does have limited endurance and Fëanáro hasn't yet found a way of addressing that.

Leareth dedicates a bit of time each day to adding to the permanent shielding on the caves. He spends about an hour a day in the Void, searching. The day before the planned Gate, he emerges from trance and, rather than taking a nap, immediately scrambles up to go find Maitimo. 

- everything all right?

:Much better than all right! I have had the first breakthrough on reaching my world - I found the Abyssal Plane: Which is going to make the next stage of his project annoying to work with; the Abyssal Plane is not a place that you want to Gate to, or interact with any more than necessary. :It is still going to take time to figure out the rest, but this is confirmation that it is possible, at least: 

Oh good. Do you have an estimate of how long -

:Three to six months. I will try for communications first – there is a spell I can adapt for that, and Gating back and forth will be expensive, so I wish to coordinate first: 

He nods. Sounds good.

The Enemy must be aware that they will be much stronger a year from now. He's not sure what it means, that he hasn't attacked even knowing that.