File 13 traces the life of various game inventions as they wind their way through the paths and pitfalls (or is that piths and pratfalls?) of corporate intelligence. You'll discover that it's a long, hard road from the author's brain to the top of the best-seller list. Originally published in issue #72 of Dragon Magazine, April 1983. Errata, clarifications, and new rules published in Dragon #73. Republished as part of a boxed set: The Best of Dragon Magazine Games in 1990.