When trolling the Little Free Libraries in Minneapolis recently, did you happen to come across a boomerang? Not a real boomerang, but one made of construction paper and inscribed by a child?

They weren't put there by accident, nor by vandals, but by writer Kate DiCamillo, who just got back from Australia, where she spoke at the Sydney Writers Festival. When she returned to Minnesota last week, she found waiting for her an envelope from Class 3A of the Green School in Bali, Indonesia. Inside the envelope were six paper boomerangs -- "kindness boomerangs," the children wrote. "Each of them is inscribed with the words 'What Goes Around Comes Around,' " DiCamillo wrote on her Facebook page. The children asked in their note for her to send the boomerangs out into the world.
"And since the world is very much in need of kindness, I put on my shoes and took a long I-can't-believe-I'm home walk around the neighborhood," she wrote. "I put the Kindness Boomerangs into Little Free Libraries." This isn't the first time that DiCamillo has used neighborhood Little Free Libraries to leave unexpected treasures. In 2016, she tucked into some autographed copies of her latest book, "Raymie Nightingale." Boomerangs, of course, come back when you release them. Just like kindness, and love. Because what goes around comes around.