Brutus, now an old and frail rat that is dependent on his family, reflects on his life, friends long gone and the simple joys that he appreciates now that he can no longer be a guard. Truly a touching story.
- An 'elseworlds' tale that takes many NIMH elements into play. Written in script format as well as in comic book form.
- A young photographer decides to venture into the Thorn Valley Wildlife Preserve and her life is never the same again. Great writing, and also has some illustrations!
- The journal of a rat that traces events before, during and after the film.
- This is an archive of the old ancillary content that went along with the older version of NTFE. This used to be hosted at ntfe.thornvalley.com.
- This is the older, illustrated version of the story "NIMH: The Final Experiment". This used to be hosted at ntfe.thornvalley.com.
- A professionally drawn graphic novel sequel to the movie. A must see.
- This illustrated sequel to the film focuses on life in the valley and Justin’s struggle as a leader and Jenner’s thirst for power.
- A beautifully told story which keeps the characters true to their form in the film. It takes place four months after the rats' departure from the farm. Mrs. Brisby and her children eagerly accept an opportunity to visit Thorn Valley; but unknown to them, the Rats of NIMH are once again facing a deadly peril--one which could destroy their self-sufficient paradise forever.
- A followup to "The Rats of Thorn Valley", as told by Jonathan. The Rats of NIMH and the Brisby family anxiously prepare for their first winter in Thorn Valley. Meanwhile Jonathan learns the meaning of "long-suffering" as he battles trouble with work, family, weather--and, most perilous of all, the fallout from Justin's tortured love-life.
- Now that Timothy has recovered and the Brisby family has moved to their summer home, it seems that Mrs. Brisby can finally relax a little. However, when going to get more medicine for Timothy, she finds Mr. Ages home ransacked and no trace of Mr. Ages... but she does find something far more sinister.