Marvel Studios has started the countdown for the second Thor: The Dark World trailer, which we reported last month is debuting Wednesday, August 7 as a part of YouTube's Geek Week celebration. The studio has released a new photo featuring Loki (Tom Hiddleston) catching up on some reading while being imprisoned by his brother Thor (Chris Hemsworth). What could this Asgardian villain be reading, and why is he imprisoned? Check out this photo, and stay tuned for the upcoming footage in just two short days.

Thor: The Dark World Tom Hiddleston Photo
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"#Marvel's #ThorTDW trailer hits @YouTube's #GeekWeek in 2 days! What do you want to see in #Thor's next adventure?"