Which bestselling novel was famously marketed through an elaborate alternate reality game (ARG) that included websites, phone numbers, and real-world clues before its 2013 release?

The publishing industry has created some truly innovative marketing campaigns to launch books into bestseller status. From elaborate real-world stunts to digital marketing phenomena, publishers have continually reinvented how they introduce new works to the public. This trivia question examines one of the most unconventional and successful book launch strategies that changed how the industry approaches product launches. Test your knowledge of literary marketing history!

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Night Film by Marisha Pessl
S. by Doug Dorst and J.J. Abrams
Mr. Penumbra's 24-Hour Bookstore by Robin Sloan
The Circle by Dave Eggers