This movie greatly deviates from the original novel in which there are no supernatural elements, and Nicodemus is neither magical nor elderly, but merely an intellectual. Jenner is not a villainous character, but the leader of defectors from The Plan, and who is believed killed during an unsuccessful raid of a hardware store (that is how N.I.M.H. discovers the location of the rats). The move of Mrs. Bisby's home is accomplished by the rats without incident (or magic).