I am surprised no one in the comments said you missed a page and a couple of chest especially the eyechest in the restricted section of the library while you were invisible, lucky you can go back there tho but stay invisible for the eyechest :) You can also still get the chest in the atheneum, fun to find out how in case you will play another house and look more around you and up and down, and slowly not so fast, also while doing revelio you miss so much without doing so, and pay more attention to your radar for collectionchests, like the one in Figs classroom in the left corner :) and you missed so many free plants around the herboligy class
I am surprised no one in the comments said you missed a page and a couple of chest especially the eyechest in the restricted section of the library while you were invisible, lucky you can go back there tho but stay invisible for the eyechest :) You can also still get the chest in the atheneum, fun to find out how in case you will play another house and look more around you and up and down, and slowly not so fast, also while doing revelio you miss so much without doing so, and pay more attention to your radar for collectionchests, like the one in Figs classroom in the left corner :) and you missed so many free plants around the herboligy class