There is just 1 boook of the Dead.

But sorry, I can't remember a locked door in that Old Cave...

I even didn't do any research what the differences are between both Necromancer platforms, the not upgraded or the upgraded one. Somebody can explain? wink

On 7th of february 2015 : I start a new adventure in the Divinity world of Original Sin,
it's a Fantastic Freaking Fabulous Funny ... it's my All Time Favorite One !