On Re-Animating The Dead (in fiction, obviously)

It's often said that what is dead may never truly die. This is of course a part-truth. Death is death. My poor beloved cat won't suddenly re-appear outside my room to beg for food . But Terry Pratchett's last book has just been released and it's shot up to the number one bestseller despite Terry losing his defiant battle with Alzheimer's earlier this year. His name is still everywhere. He's dead, but certainly not forgotten - something we all aspire to.