How a public library's summer game took over a Michigan city
Summer in Ann Arbor, Mich., means thousands of people hunting for hidden codes around the city and reading books to earn points. It's part of a popular game organized by the public library.
Summer in Ann Arbor, Mich., means thousands of people hunting for hidden codes around the city and reading books to earn points. It's part of a popular game organized by the public library.
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