June 9, 2016 11:52 AM EDT

Freshly beard-free Game of Thrones favorite Kit Harington is getting up to some mysterious trouble that doesn’t look like it has anything to do with Westeros, White Walkers or the battle to come in the North.

In a new video released to TIME, the star—looking slightly concerned—can be seen getting wheeled into a giant metal cage lined with motion-capture cameras. These kinds of cage-like contraptions are used to scan and capture the likeness of an actor for later use. What that use will be, however, remains unknown. But this looks like it could be a clue about Harington’s next project.

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Write to Raisa Bruner at raisa.bruner@time.com.

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