* ParanoiaFuel: Spectres. They can impersonate ''anyone'' and [[TreacherousSpiritChase twice they impersonate people's loved ones]]. They also seem to enjoy leading victims to their deaths. They count as this InUniverse to Addie after she runs into one.
* TearJerker:
** Gavin, the first person to volunteer to help, [[spoiler: is the only one who dies in the final battle.]]
** The ending. [[spoiler: Addie saves Meryl, but Meryl's illness is so advanced that her only hope of survival is to be transformed into a fairy. She won't be coming home with Addie.]]