A spell cast in a recent episode of  "The Night Watchmen" was translated into "expel" and it might remind viewers of the expelliarmus spell used in the Harry Potter books to disarm a wizard.

And that's not to say it's the only time "The Night Watchmen" might remind viewers of the seven-book saga of the boy wizard.

In "The Night Watchmen," Lee Rin, the legitimate princely heir to the throne, loses both his father and mother at a young and tender age. They didn't die in a noble and tragic way defending him as happened in the Harry Potter saga but their death leaves the young prince without anyone to trust. His father, possessed by a demon ghost, has killed everyone near and dear to him.

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