This card seems a bit too strong with The Necronomicon and Scroll of Secrets. Since you can easily search both tomes with Research Librarian, the combo seems too easy to get going for how strong it is.

If you throw in some secret recovery like Truth from Fiction or Eldritch Sophist you can easily recharge Scroll of Secrets.

You could also add Knowledge is Power and Library Docent if you want even more necronomicon action. Library Docent also works as a nice way to recharge Scroll of Secrets.