Emma Watson played book fairy recently, secretly leaving behind books in London's subway stations to encourage riders to read.
Interested in London?Add London as an interest to stay up to date on the latest London news, video, and analysis from ABC News.
The "Harry Potter" actress, 26, was spotted hiding copies of "Mom & Me & Mom" by the late Maya Angelou in London's Underground Tuesday.
"I've been hiding copies of Mom & Me & Mom for Books on the Underground on the tube today! See if you can find one tomorrow!" she wrote in a Facebook photo.
The star also posted a video of herself leaving books along an escalator handrail.
Watson hid a total of 100 copies of the book as part of Books on the Underground's campaign to encourage commuters to read more on the subway -- and share books they enjoy by leaving one behind.
Earlier this year, Watson started an online feminist book club called Our Shared Shelf. "Mom & Me & Mom" is her book club's November/December selection.
Riders lucky enough to find one of the copies also got a special note from Watson that she inscribed inside each of the books.