These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Paranoia Fuel: Spectres. They can impersonate anyone and twice they impersonate people's loved ones. They also seem to enjoy leading victims to their deaths. They count as this In-Universe to Addie after she runs into one.