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Double Negative is a chapter book created and published by Scholastic and based on Ben 10: Alien Force.
In lots of ways, Ben Tennyson is just a regular teenage boy going about his everyday life. But recently his girlfriend Julie has noticed that something seems different about him. Even his parents begin to notice. So when Ben sneakily uses his access into Plumbers' HQ to steal some top-secret alien intel, Gwen and Kevin decide to shadow him and the jig is up. Can Gwen, Kevin, and Julie figure out what happened to the real Ben and get him back?
- Ben Tennyson
- Gwen Tennyson
- Kevin Levin
- Julie Yamamoto
- Imprisoned Vulpimancer
- Imprisoned Tetramand
- Other Prisoners
- Rath (accidental transformation; selected alien was Big Chill)
- Echo Echo (accidental transformation; selected alien was Humungousaur)
- Mana was misspelled "manna".
- Wildmutt's name was misspelled "WildMutt".
- The Vulpimancer language was translated by the Omnitrix even though the language was previously stated to be untranslatable.
- Kevin's legs were stated to be made of an unknown alien substance, although they are actually made of wood.
- The Voliticus Biopsis were referred to as Apis Metalifera.