<P> When Harry visits his parents' grave, the biblical reference "The last enemy that shall be destroyed is death" (1 Corinthians 15: 26) is inscribed on the grave . The Dumbledores' family tomb also holds a biblical quote: "Where your treasure is, there your heart will be also", which is from Matthew 6: 21 . Rowling states, "They're very British books, so on a very practical note Harry was going to find biblical quotations on tombstones...(but) I think those two particular quotations he finds on the tombstones at Godric's Hollow, they sum up--they almost epitomise the whole series". </P> <P> Harry Potter pundit John Granger additionally noted that one of the reasons the Harry Potter books were so popular is their use of literary alchemy (similar to Romeo and Juliet, C.S. Lewis's Perelandra and Charles Dickens's A Tale of Two Cities) and vision symbolism . In this model, authors weave allegorical tales along the alchemical magnum opus . Since the medieval period, alchemical allegory has mirrored the passion, death and resurrection of Christ . While the entire series utilises symbols common in alchemy, the Deathly Hallows completes this cycle, tying themes of death, rebirth, and the Resurrection Stone to the principal motif of alchemical allegory, and topics presented in the first book of the series . </P> <P> The launch was celebrated by an all - night book signing and reading at the Natural History Museum in London, which Rowling attended along with 1,700 guests chosen by ballot . Rowling toured the US in October 2007, where another event was held at Carnegie Hall in New York City with tickets allocated by sweepstake . </P> <P> Scholastic, the American publisher of the Harry Potter series, launched a multimillion - dollar "There will soon be 7" marketing campaign with a "Knight Bus" travelling to 40 libraries across the United States, online fan discussions and competitions, collectible bookmarks, tattoos, and the staged release of seven Deathly Hallows questions most debated by fans . In the build - up to the book's release, Scholastic released seven questions that fans would find answered in the final book: </P>

Harry potter and the deathly hallows book wikipedia