* CashCowFranchise: The ''only'', repeat, ''the only'' children's book series that has sold more units than ''Harry Potter''.
* RecycledScript: Taken to ridiculous lengths with the number of summer camp stories:
** ''Welcome to Camp Nightmare'' (Original Series #9): A boy goes to a summer camp said to be haunted by a monster in the woods and his bunkmates keep getting injured and disappearing ([[spoiler:Turns out the place is a SecretTestOfCharacter for the protagonist and that he and his family are human-looking aliens ready to go on a vacation to Earth]]).
** ''The Horror at Camp Jellyjam'' (Original Series #33): A brother and sister on a road trip crash their trailer into a sports camp where everyone is obsessed with competing and winning in sports [[spoiler: so they can be slaves to a giant purple blob whose cronies are the BrainwashedAndCrazy StepfordSmiler counselors.]]
** ''Ghost Camp'' (Original Series #45): Two brothers go to a summer camp where [[CaptainObvious everyone is a ghost]] and the only way they can escape is to possess the body of a living being.
** ''The Curse of Camp Cold Lake'' (Original Series #56): A girl at a water sports camp finds herself haunted by a murderous {{Yandere}} ghost girl who can't go to the afterlife unless she has a buddy.
** ''Fright Camp'' ([[{{Trope 2000}} Series 2000]] #8): A group of horror movie fans win a trip to a camp that is said to be home to a horror movie director's creations.
** ''Return to Ghost Camp'' (Series 2000 #19): A boy switches places with another camper on his way to the ghost camp from the original series and enjoys living his life -- until [[spoiler:it's revealed that the boy the protagonist switched places with is prepped to be sacrificed to a monster in the woods]].
** ''Escape From Camp Run-For-Your-Life'' ([[ChooseYourOwnAdventure Give Yourself Goosebumps]] #19): You (the reader) find yourself in a camp filled with zombie children.
** ''Welcome to Camp Slither'' ([=HorrorLand=] #9): A brother and sister find themselves in a camp infested with snakes.

!! These books [[ImageSource provide the page image]] for:

* AmusementParkOfDoom
* EvilMask
* NeverSleepAgain

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