Question about the "Beyond Advanced spanish book"

Hello. As we have just moved ,we don't have internet yet due to some issues with wires and that stuff, but anywayszz. Before we moved I took the time to download the Beginners Spanish Book, Suplement book and vocabulary book(from the first course) + the advanced grammar book (from premium+ course) . Eventhough I finished the first course about 6 months ago or something I didnt want to read a whole amount of 200-400 pages with spanish, because thats just the way it gets boring. Fortunately, I had to have something to do on the computer while the internet is not available yet. Great books ! :D Now I finished the Advanced grammar (which is Premium + Language & Culture lessons which I already had gone through all the grammar before, but I wanted to do it again to remember) and in the end Mauricio / Amy writes : Take a look in the "Beyond Advanced Grammar" book in the last and final course. And I have almost done the first two units (both language and conversation) but when I look around, I cant find it ?!?! :D Please ! :D

I am a premium level 3 student, and I see that this question was asked 4 years ago.  Has it ever been answered?  Also, when I search for it, I am told that I have to sign in and be a premium member, which I am.