Transformers/Beast Wars and Portal Crossovers
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Artificial by Ridel reviews
Having left Cybertron in a seemingly endless quest for new sources of energon, The Autobots come across some interesting characters in the void of space.
Rated: K+ - English - Adventure - Chapters: 1 - Words: 2,804 - Reviews: 21 - Favs: 26 - Follows: 28 - Published: 12/27/2011 - Optimus Prime, Wheatley