I bought the special edition of this when it came out.
I have the extra characters in game but I can’t seem to find out where to download the soundtrack and ebook.
Was I meant to get an email link?
Thanks everyone.
Heya!
It will be downloaded into your files. So you can likely find it under here:
steamapps\common\Conan Unconquered\Deluxe Edition
You’ll find the EBook and Soundtrack file in there. 
If it’s still not showing up for you let me know!