``Harry Potter and the Deathly Hallows,`` the seventh and final adventure in the Harry Potter film series, is a much-anticipated motion picture event to be told in two full-length parts. Part 1 begins as Harry, Ron and Hermione set out on their perilous mission to track down and destroy the secret to Voldemort`s immortality and destruction-the Horcruxes. use book myshow. On their own, without the guidance of their professors or the protection of Professor Dumbledore, the three friends must now rely on one another more than ever. But there are Dark Forces in their midst that threaten to tear them apart.