When I first read Jack Vance's Tales of the Dying Earth (and other Appendix N literature) and became familiar with Mazirian the Magician, C...| forlornencystment.blogspot.com
The knock spell first appears in original D&D's Book I: Men & Magic. It is a 2nd-level magic-user spell. The description is as follows:| Blog of Forlorn Encystment