Keith is the monster in the sixty-first Goosebumps book, I Live in Your Basement!.


I Live in Your Basement!

Keith is a monster with the ability to warp realities and transform into anything. Keith's goal was to make Marco his slave. But in the end, it turns out he is a normal human-like monster who wishes not to be seen by Marco.

Download and Die!

Keith will appear in the second arc the Goosebumps comic series, Download and Die!. According to concept art, Keith appears in both his human form and blob form.

General Information

Physical appearance

In his original form, Keith looks like a yellow blob of human organs connected by webs of purple veins. However, in other instances, he appears as a normal boy.


He had the power to go into Marco's dreams and change his mind.

List of appearances

Title Role Release date Series
I Live in Your Basement! Antagonist November 1997 Goosebumps
TBD Unknown February 2018 Goosebumps (comic series)