The lyric sheets have been created for all nine of the songs on Coldplay’s new album, and so far five of them have been found slipped into copies of Emily Brontë’s Wuthering Heights; Arthur Conan Doyle’s The Hound of the Baskervilles; Clive Barker’s Mr B. Gone; Peter Washington’s Ghost Stories; Charles Dickens’ A Christmas Carol.
The lyric sheets have been found in Dartford Library, Kent; Sant Pau-Santa Creu library, Barcelona; Rikhardinkatu Library, Helsinki; Singapore National Library; and Vasconcelos Library in Mexico City.
Fans can keep track of the discoveries at .