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Synchronicity
MOD
(4 Score & 7 Years Ago)
Florestan
Since: May, 2015
Ohnhai
Since: Jan, 2018

I'm trying to think of the appropriate trope that describes a character or device that you have created that is, or becomes, such an impediment to the storytelling because their presence literally prevent the protagonists or fellow protagonists from getting into trouble in the first place, and so the author has to go to extreme lengths to keep them out of the way until the end when they inevitably appear and nullify the problem .The Luggage in the Rincewind Discworld books for example, Or indeed Miss Wetherwax herself in the later books.
So does such a beast exist or do we have to name it?