Uncharted 4: A Thief’s End co-director Neil Druckmann has shared a new image of the action-adventure game’s Steelbook casing. The front, featuring the game’s main characters, looks as good as when we first saw it last year. But for the first time, we can see the back of it–and it’s a little creepy.

As you can see, some unfortunate soul apparently died in a hanging human cage, leaving only their bones behind. Presumably, this will be explained in A Thief’s End.

Note that Druckmann said he’s “reviewing” the Steelbook proofs, so it’s possible the design could change.

After another delay, Uncharted 4 is now scheduled to arrive in late April 2016 exclusively for PlayStation 4. In other news, Druckmann recently talked about saying goodbye to Drake and the Uncharted series, as well as the game’s branching dialogue sections.

What else stands out to you from the Steelbook design? Let us know in the comments below.