So those two and these on the Dwemer and this on Oblivion and a collection of Nord folk tales, and that should suffice.

There's some convenient chairs and a table over there, positioned so it'll be hard for people to get behind them, or they can try to check out the books.

Table. She doesn't want to have to deal with the orc again.

Ena helps carry the books to the table, then picks one of the books on the elder scrolls to read through; The Effects of the Elder Scrolls.

"This is frustratingly sparse on information," she comments after a bit. 

"That's almost a given, considering the nature of the subject." Elana skims the other.

The book is rambling, and difficult to decipher. It's entirely metaphor, but it slowly becomes apparent that the author, Septimus Signus, has at least encountered an Elder Scroll before, if not read one. 

"Hm. It says here this Septimus is a member of this College."

"Probably a better lead than this one. It's a Second Era treatise on why you shouldn't open them without training; not really what we're looking for."

"I wonder if there's a list of faculty somewhere."

"Probably with that orc, or the Archmage."

She grimaces. "Something about him rubs me the wrong way."

"Which one?"

"The orc."

Shrug. "He reminds me some of the librarian back home. Defensive of his domain, which makes sense. Some of these books are fragile. I can talk to him, if you don't want to."

"Probably better if the same person doesn't ask all the attention-grabbing questions anyway."

"We should try to find if there are other books by him, to at least have plausible deniability when asking around."

"Possibly easier said than done. We can, nonetheless."

So looking they go. The books are sorted by subject, then by author, then by title, so it isn't too hard to find a few other history books by Septimus. Three are in with books on the Daedric Princes: a treatise on the Daedric Princes in general, apparently written while Septimus was a student; one on Jyggalag, with a footnote that he might be connected to the Elder Scrolls; and another discussing the theory that the Black Books were Hermaeus Mora's attempt to recreate the Elder Scrolls. There's also one book sorted in with Dwemeri history, about their more esoteric experiments - it actually mentions the Scrolls briefly, theorizing that a Dwemeri device might've been used for reading dangerous material like the Black Books or the Scrolls. There's also some musings on Lorkhan in the ancient history section.

"The books about Jyggalag, Lorkhan, or the Dwemer would probably be the safest to feign interest in..." Ena muses. "They have the most tenuous connection to the Scrolls. For the Dwemer, I could pretend to be hunting down a lead for the museum in Solitude. Artifact hunters are common enough."

"And it has the advantage of being nearly true. That is probably safe enough."

"Alright."

She mentally composes her questions, then takes them to the librarian - does he happen to know what became of Septimus Signus, she was reading his treatise on Dwemeri experiments in esoteric energies. She's working for the new museum in Solitude, you see, and believes there may be exciting opportunities for scholarship there, but research is thin on the ground...

"I only know somewhat. He's been gone for a while. Too long."

"Gone?" Ena asks. "Where did he go?"

"Up north somewhere. Claimed he found some Dwemeri artifact, years ago. Vanished afterwards. No one'll admit to having seen or heard from him since."

"Thank you; I'll have to talk to my superiors about whether it's worth trying to find him. You've been a great help."

He waves her off, and returns to his work, while Ena heads back to Elana. 

"There's not much north of here but ice and ocean."

"If someone's living out there, there should be some signs, at least. Though the question becomes, do we want to bother going after him?"

She considers. "It seems to me that if another Scroll exists in Skyrim, this man is likeliest to know how to find it, if he yet lives. In the absence of any other immediate trail to follow, we ought to chase this one to its end."

"Alright. It's currently not snowing too badly, and the clouds look liable to not get worse anytime soon. I'd rather start while we have the light and while the weather's not too bad."

"Agreed." Then they can return the books and leave.