Version 6 of Simple Followers by Emily Short begins here.

"Allows non-player characters to follow the player (or one another); adds a FOLLOW command and a corresponding STOP FOLLOWING command so that the player can issue these orders to non-player characters."

Include Plurality by Emily Short.

• Section 1 - The shadowing relation
• Section 2 - The FOLLOW action
• Section 3 - The STOP FOLLOWING action
• Section 4 - Another meaning for WAIT