i think this is not necessary. because when you only can use 2nd level spells, you acturally can learn the 3rd level spell for free without use a spell slot.
this is, you can use the book immeditately.
i suppose this book will have its continuing story.
I hope it does. One thing that worries me however is that when you use the sorcerer options and succeed in calming down the spirits in this book, the narrator says 'the heavy cover thumps shut with a strange finality".
It would be quite frustrating if the book would really become useless in this case, I hope more interactions with the tome are still possible at a later point in time even if we have chosen these options. Maybe the book just takes a break
But when we read the book turning page by page, and succeed all wisdom saving throws, I don't think it is even necessary to open the book again in the future to unlock its secrets : The narrator says that
"The glyphs scream, branding your mind with strange runes. You see time rewritten -fate undone- your future thrumming with power. The book snaps close. You've seen to much. What profane knowledge is now seared inside of you, you should never have known."
So for better or worse, it seems we have already sealed the deal. I am curious as to what the consequences will be in the future.
