On March 27, 2017, Bruno de Melo Silva Borges, a Brazilian student, disappeared after leaving his home in Rio Branco, Acre. In his bedroom, Borges left several encrypted messages, 14 handwritten books, and a statue of philosopher Giordano Bruno. The Civil Police of Acre investigated the case and Interpol was called. Borges's disappearance received wide coverage on the Internet, generating memes and online investigations. During the investigation, it was revealed Borges had the help of two friends and a cousin to carry out the project, and that he had signed a contract allocating part of the proceeds of the sale of his books to his three helpers.
