This spell book appears to be a normal book prior to attunement, but when held by a divination wizard will be instantaneously recognized as more than it is. Once attuned the book gives immunity to Radiant damage and can serve as an arcane focus. Also once attuned the item only appears when called to the wizards hands by the owner, giving advantage on Intelligence saves and a +1 bonus to Arcana checks when in hand.

Though maintaining the size of a standard spell book this book contains unlimited pages. Inside it holds every divination spell for the holder to prepare and cast as long as they have a level spell slot equal to the spell. The writing in this book is only visible to the owner and any person he/she allows.

Casting a prepared spell works as would a normal spell book, but casting an unprepared spell from the book requires twice the number of spell slots to expend. (Two 1st-level slots to cast Identify.)

Notes: Immunity: Radiant, Advantage: Intelligence Saving Throws, Bonus: Arcana, Requires attunement by a School of Divination Wizard