"Fifteen. And a half." 

"Well. Yikes. - lemme finish this history thing and then I'll get a Necronomicon, I guess. Why's it called that?"

"I don't know. There's stuff in there that's dangerous, but it's not about death." 

"The title in the original Arabic is Kitab Al-Azif, I don't know if it's a literal translation." 

"No, that means 'the book of ignorance', that's weird."

"It was translated into Latin in the thirteenth century, maybe the translator had an overblown sense of the arbitrarily dramatic." 

"Perhaps. I wonder what else is different in the Arabic. Anyway, Civil War -" He proceeds through the rest of the slideshow.

The histories match as best either twin can determine. 

"Okay. Necronomicons." He makes two, an Arabic one for him and an English one for them.

Wilbur immediately sits down and begins leafing through it. 

Flip flip. "I'm Cam, by the way, I don't think I mentioned."

"Wilbur and Lucy Whately." 

"Charmed." What is in the intact book of ignorance?

Lots and lots of really disturbing information. 

The section Wilbur seems to be focusing on has a lot to say about Yog-Sothoth. Including instructions for a ritual that will summon him completely to this world and wipe out all life. Wilbur has skipped that and is intensely studying a set of pages that have more to do with his biological properties, insofar as a creature like Yog-Sothoth can be said to have a biology as humans would describe the field. 

"- have all the things you've tried from this worked as described?" wonders Cam.

"Until I got you instead of a Hornet. But since I'd successfully summoned Hornets before I suspect an error on my part." 

"Right, except that. There's a bit in here about resurrecting the dead."

He physically drops the book in shock. (It stops before it can hit the floor, caught by some invisible appendage.)

"What?" 

"It's page a hundred and four in my edition."

He takes the book back from his sister and flips hurriedly to page a hundred and four. "--That's missing from our old copy," he says. 

"Yes, I figured since it was so surprising when I mentioned it. However, as a note of caution, I don't think the person who compiled this was terribly concerned with ethics, what with there being world-destruction rituals and sketchy telepathy and whatnot, so I don't think we can be positive they'd mention if there was some terrible side effect to going through this long ritual."

"If the side effects are worse than being dead we can just kill them again." 

"Presumably, but I was thinking more along the lines of collateral damage. It's possible that, say, your dad wouldn't object to being fully summoned and ending the world, but the world would mind."

"--We can limit the damage, probably. There are wards--" he flips to a different section "--here, see, they don't last long before needing to be re-done but I can use them to keep Lucy in the house--it's why there weren't more casualties when--when we found out what happens when she gets so hungry her higher brain functions stop functioning. I don't know if they'd work on an ordinary human but someone who was resurrected might not count and even if they did the wards could be modified." 

"I was thinking more along the lines of doing a test resurrection somewhere in space."