Unfortunately already the first puzzle turned out to be too difficult for me haha! Maybe put a play thorugh somewhere so if people are stuck they can go through the game! I would love to see more than just the first room :)
Thank you for your feedback! I put an explanation on the game page on how to solve the puzzles. I hope you will give it a second chance :)
You also have to put the book cover standing in the light. You sould see the book cover
You can always use Q and E to rotate them while holding them you don't see them clearly :)