Tales From the Crypt Presents: Ritual is the third film spin-off from the HBO television series Tales from the Crypt, the first being Demon Knight and the second being Bordello of Blood. It stars Tim Curry, Jennifer Grey and Craig Sheffer. A third Crypt movie was planned on the release of Bordello, but due to the low box office take in on the film, the third movie was cancelled.
The Ritual is a magic-restoring ritual in Artemis Fowl that faries have to do to regain their power after it is used up. The Ritual requires (from The Book of the People) that a fairy (exept trolls and demons) pick up an acorn from an ancient (100 years+ old) oak tree near a river bend during a night of the full moon, and then replant it in soil (even a little sliver) "far" away from the place where they picked it. Then, they will feel magic coming up through their arm from the acorn in the ground.