Searching for a "zip" download of Agatha Christie's works typically leads to unauthorized or potentially harmful piracy sites. Because the (1926) and its modern collections are still under active copyright in many regions, including the U.K. (until 2046), the safest and most reliable way to read it is through official ebook platforms or your local library. Where to Read Legally
You can find The Last Séance —both as an individual short story and as part of the supernatural collection released in 2019—at the following official retailers: Amazon.com: Last Seance, The: Tales of the Supernatural Download Agatha Christie The Last Seance zip