Review Season 2021 kicks of with a review of three stories and a festival, as we reflect on the haunting connection between mystery fiction and All Hallow's Eve. Featuring discussion of Edgar Allan Poe's Dupin Mysteries (Murders in the Rue Morgue, The Purloined Letter, and The Mystery of Marie Rogêt), and Agatha Christie's Halloween Party, plus a few wild assertions with little to no legal basis, we hope this Halloween celebration bids you well this Christmas.