Mystery, Incorporeal is the fourty-second episode of Ben 10: Omniverse.
November 2, 2013
An old enemy emerges while Ben and Rook visit Kevin and Gwen at college.
- Kevin is seen at the end, hiding something saying, "If Ben, Gwen and Rook find out I created the robot, I'm doomed!" as the screen fades to black.
- Gwen is revealed to be that Robot in the background with Kevin, and is the real villain behind all of the trouble from Alien Force to Omniverse.
- Ben Tennyson
- Rook Blonko
- Gwen Tennyson
- Kevin Levin
- Darkstar (revealed to be created by the Robot Gwen)