Stop me if you’ve heard this one. You and your party of adventurers are running around some dimly lit cavern or sneaking through a crumbling temple or entering a spooky, abandoned little town. It’s quiet. A little too quiet. Surely, not everything is as it seems.
Then you hear a sound: a dice roll. It’s a perception check, and you’ve failed it! Your entire party, in fact, one by one, has completely failed to spot… well, something. So, you stop in your tracks because even though you didn’t notice anything, you did notice that you
