* NightmareFuel - While on the bus to heaven, one of the ghosts the narrator converses with nervously reveals that there is talk in hell that when the sun finally sets, "they" will come out.
** The ending of the conversation between Sarah and Frank Smith. It involves swallowing.
* TearJerker - The possessive mother's pleas are heart-wrenching, even if we aren't meant to side with her.
* TheWeirdAlEffect - Lewis credits an American sci-fi story with inspiring the idea of impervious matter in heaven (the original story apparently involved a [[TimeTravel time traveler]] who went back in time and found "raindrops that would pierce like bullets and sandwiches no strength could bite," because [[YouCantFightFate nothing can change the past]].) Unfortunately, he couldn't recall the name of the story or its author. (One potential candidate is ''The Man Who Lived Backwards'' by Charles F. Hall.)
* {{Wangst}} - Pretty much endemic to the residents of Hell because it's the (main) reason why so many Ghosts get stuck there-they can't see past their own egos long enough to admit that they even need help, much less that it would take God to transform them in any eternally meaningful or beneficial manner.
** The Tousle-Headed Poet is a particularly egregious example.
* WildMassGuessing / FridgeBrilliance: In the beginning of the story, there's a bus, which drives damned from Hell to Heaven if they wish. The bus is operated by unnamed driver. Later, in Heaven, George Mc Donald notes that only God can go to Hell to save sinners. Now, who is this Driver?