The Magnus Archives is a horror story written by Jonathan Sims, directed by Alexander J. Newall and distributed by Rusty Quill. Sims narrates the stories in-character as the main character, Jonathan Sims, the newly-appointed head archivist of the fictional Magnus Institute; an institution based in London centred on research into the paranormal.

With each chapter released as a podcast episode, The Magnus Archive is structured as a series of statements recorded or written and then recorded for internal research use within The Magnus Institute. At the beginning of each statement, the statement-taker (mainly Jon, the head archivist) provides a brief description of the statement and the name of the statement-maker. Those who give or record statements in the Magnus Institute tend to lapse into a trance-like state not unlike reliving the event.

The fourth season of this award winning horror audio-drama series.