The Book of Night With Moon being Mistaken as Lost Logia... That's... Wow.
It'd have to be slightly AU, seeing as the Powers That Be took measures to make sure that it wouldn't be found by anyone who wasn't supposed to find it... Not unless they wanted Nanoha to, for whatever reason.
More likely, they somehow stumble upon the little pocket that Nita and Kit made for that Wyrm and recover the Lone Power's twisted version of the book. Now, I can see why TSAB would be interested in the thing, because while the Book of Night with Moon radiates a vague sense of danger due to the power it holds, the Lone Power's version simply radiates wrongness to such a degree that holding it for extended periods of time can actually hurt.
So, Nanoha and Fate try getting this book back to the TSAB so they can figure out how to dispose of it properly (of course, not realizing that due to Karma, the book must exist as long as it's counterpart does as well), The Lone Power is hopping mad, trying to get it back... And then the Powers That Be scramble their best and brightest when dealing with The Lone Power directly: Juanita Calahan, Kit Rodriguez, Dairine Calahan, and poossibly a few others. (The wizard from A Wizard Apart who was autistic comes to mind - TSAB's gonna have fits with him!)
It'd have to be slightly AU, seeing as the Powers That Be took measures to make sure that it wouldn't be found by anyone who wasn't supposed to find it... Not unless they wanted Nanoha to, for whatever reason.
More likely, they somehow stumble upon the little pocket that Nita and Kit made for that Wyrm and recover the Lone Power's twisted version of the book. Now, I can see why TSAB would be interested in the thing, because while the Book of Night with Moon radiates a vague sense of danger due to the power it holds, the Lone Power's version simply radiates wrongness to such a degree that holding it for extended periods of time can actually hurt.
So, Nanoha and Fate try getting this book back to the TSAB so they can figure out how to dispose of it properly (of course, not realizing that due to Karma, the book must exist as long as it's counterpart does as well), The Lone Power is hopping mad, trying to get it back... And then the Powers That Be scramble their best and brightest when dealing with The Lone Power directly: Juanita Calahan, Kit Rodriguez, Dairine Calahan, and poossibly a few others. (The wizard from A Wizard Apart who was autistic comes to mind - TSAB's gonna have fits with him!)