This game reminded me of why I have liked the French Comp over the years: the innovation.
You have in this story a book that can flipped forwards and backwards. It has about 8 or 9 pages total (at first). At first, I thought there was a bug, as the book seemed intended to have jewels on the front but they were missing, but as you read, you discover that's not the case.
An ancient civilization conquered all galaxies but couldn't prevent the end of the universe as it was consumed by black holes. Instead, it found a way to encode its entire history and culture into three crystals (the ones missing from the cover of the book), each held by a different guardian.
The book's history fluctuates, kind of like (but very different from) SCP-140 from the SCP Wiki. Different chunks of texts will flicker, and clicking on them changes the story. Change it enough, and you get a visual logiv puzzle you can solve by clicking.
I had a lot of fun with this. There are definitely some areas weaker than others (like Rovarsson mentioned, the story is fairly basic; another thing is the puzzles themselves are simple), but the overall interactivity is nice and the story is engaging, so for me the game as a whole was more than the sum of its parts.