A Portal 2 online comic is set to hit the net at the end of the week.
It's called 'Lab Rat' and is being produced in-house by Valve and the co-creator of Powers and The Mice Templar, Michael Avon Oeming.
Also on the team is artist Andrea Wicklund, who is collaborating with Oeming, Ted Kosmatka, Erik Wolpaw, Jay Pinkerton, and Chet Faliszek.
The story will bridge the gap between Portal 1 and Portal 2 and will feature a "much-rumoured and never before seen character", Oeming told Big Download.
The comic will be featured on IGN Comics starting tomorrow. The site has posted a few scraps of artwork as a preview. We've stuck a few in here for your viewing pleasure.
See the latest Portal 2 trailer, released on Tuesday.