"Can one of the Andalites please ask -"

<Oh, sure. Ghost, how long have you been dead - is it more than a decade ->

It's got to be thousands of years, by now, he signs.

"...please remind him we still don't have his language and he should just nod and shake his head in response to yes or no questions."

<None of the people who can see you have translator chips so they still don't know what you're signing, can you just nod or shake your head? More than ten years?>

Nod.

<More than a hundred?>

Nod.

"He says more than a hundred years, why is that the limit..."

"The hard limit is ten years per caster level, for True Resurrection. So maybe as much as two hundred twenty, if we scoured all the world for it."

"...well, do you plan on doing that if that's how long he's been dead, should she ask him?"

"She could at least ask, yeah."

<More than two hundred twenty years?>

Nod.

"Well, that sucks."

"It's possible there's some other way to do it."

"Why is the limit ten years per caster level, what is a caster level..."

"A lot of spellcasting abilities get stronger over time in a tightly correlated way and at certain thresholds we refer to you as the next level. I don't know why that's the limit."

"I think it's weird that his being a ghost and wizards being able to see ghosts are interacting even though it doesn't seem his world has wizards, maybe if there's a cheap option you could try it in case."

"Has someone prepared Restoration?"

    Someone has. They cast it. 

The ghost stops being a ghost.

Mmmmmmmlrghwha -

"Gosh, he looks just like you. Well, like Aaron, with pointy ears and taller, I guess."

"Uncanny. And he has thoughtspeak too? Now that he's not dead? I guess maybe he can be our translator."

He lies down on the ground and does not attempt to do or say anything.

"Are you all right?"