The Mysterious Warning: A German Tale is a novel by the English gothic novelist Eliza Parsons.

It was first published in 1796 and is one of the seven "horrid novels" lampooned in Jane Austen's Northanger Abbey.

How much I am obliged to you; and when you have finished Udolpho, we will read the Italian together; and I have made out a list of ten or twelve more of the same kind for you.

Castle of Wolfenbach, Clermont, Mysterious Warnings, Necromancer of the Black Forest, Midnight Bell, Orphan of the Rhine, and Horrid Mysteries.

6 Subtitled "a German Tale" it was first published in London by the sensationalist Minerva Press and contains many familiar gothic tropes, including dark family secrets, incest, seduction, and ghostly apparitions.