I have recently read ANGEOLOGY by the American writer Danielle Trussoni and I have loved it. The book tells us about an old science managed by the Angeologists, who search the truth about the existence of angels.
Out of question if you thought that we are descended from monkeys as Darwin theory, all the contrary, when angels fell at Earth and realized about the gorgeous women who habited the planet, they fell in love quickly and started to spreading their offspring around.
Because angels noticed that there were enough stuff about them on pictures, urban legends, etc… they invented newspapers, science and TV, especially for getting off the point of their existence and to pass unnoticed.
There are incredible scenes on the book: An expedition searching for the place where Angels fell, the invasion of a convent by bad Angels without soul… and with a tremendous final where the first character will become like a marvel comic superhero.