If you’re traveling by London tube, you might come across some hidden free book gems along the way: Emma Watson has been craftily placing 100 paperback copies of beloved writer Maya Angelou’s Mom & Me & Mom around the busy stations.

The Beauty and the Beast actor and U.N. Goodwill Ambassador heads up an open, feminist book club, called “My Shared Shelf”—and the Angelou autobiography is November’s read. To make it happen, Watson partnered with Books on the Underground, a “community project” that regular drops free books in unexpected spots around London’s tube network.

On her Instagram, Watson cheekily shared her secretive antics as she deposited the copies throughout stations and in train cars. And for those not lucky enough to snag a free autobiographies in London, they can always get in on the action by picking up our own copy and joining the book club conversation online.

Commuters have already started spotting and picking up the tomes, hidden in plain sight. They even get a handwritten note from Watson enclosed.

As to why Watson chose this Angelou work, the seventh in her series of autobiographies?

“Vivian Baxter [Angelou’s mother] cuts a fiercely unapologetic figure, imperfect but admirable, and we discover not just how she had a hand in Angelou’s evolution as a black woman but also in her feminist perspective, her independence and self-awareness, all of which contributed to her unique way of looking at the world and the way she expressed herself on the page,” she explained on Our Shared Shelf’s site, calling the book a “favorite.”

Excited to get copies of Mom&Me&Mom on the tube tomorrow with the help of Emma Watson! Look out for a special surprise in each book, too… #OurSharedShelf Posted by Books on the Underground on Monday, October 31, 2016

Get The Brief. Sign up to receive the top stories you need to know right now. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Write to Raisa Bruner at raisa.bruner@time.com.