44 3 3Actions Report Solution Unlocked in the "History Museum", you'll need to collect 15 rocks to unlock this Ghost Story and achievement.Here is a video including ALL collectibles in this level:Showing all 3 comments. Leave a comment. If you do manage to miss a collectible or two in the Museum, you can still go back and get it. I was able to, even after completing that portion of the story in the museum. Have no idea why people say you can't.Posted on 15 Oct 16 at 23:11 This glitched on me. I had to replay the game up to getting the first one, and then it unlocked.Posted by B1ueEyeS1y on 03 Jul 22 at 04:32 Glitched too, reload the game, watched the movie, still locked.Posted by oliv211 on 01 Apr 23 at 13:38 Leave a comment