Although these are called fairy tales, don't let that fool you ... not all of them have happy endings. In fact, some are filled with what nightmares are made of. Did you know that fairy tales in their original form were grotesque and frightening stories? Get ready to enjoy a collection of fairy tales that children should never be told ... just make sure to read them with the lights on.

Set in the Kingdom of Denmark, "Hamlet" dramatizes the revenge Prince Hamlet exacts on his uncle Claudius for murdering King Hamlet, Claudius's brother and Prince Hamlet's father, and then succeeding to the throne and taking as his wife Gertrude, the old king's widow and Prince Hamlet's mother. Cover by @vkbloodgood

"The Raven" tells of a talking raven's mysterious visit to a distraught lover, tracing the man's slow fall into madness. The lover, often identified as being a student, is lamenting the loss of his love, Lenore. Sitting on a bust of Pallas, the raven seems to further instigate his distress with its constant repetition of the word "Nevermore". Cover by @Lujayna

"Macbeth" tells the story of a brave Scottish general named Macbeth who receives a prophecy from a trio of witches that one day he will become King of Scotland. Consumed by ambition and spurred to action by his wife, Macbeth murders King Duncan and takes the throne for himself. He is then wracked with guilt and paranoia, and he soon becomes a tyrannical ruler as he is forced to commit more and more murders to protect himself from enmity and suspicion. The bloodbath and consequent civil war swiftly take Macbeth and Lady Macbeth into the realms of arrogance, madness, and death. Cover by @newsies-

"The Adventures of Tom Sawyer" is about a young boy growing up along the Mississippi River.

"The Count of Monte Cristo" focuses on a man who is wrongfully imprisoned, escapes from jail, acquires a fortune and sets about getting revenge on those responsible for his imprisonment. However, his plans have devastating consequences for the innocent as well as the guilty. Cover by xflowerpetalsx

The Three Musketeers (French: Les Trois Mousquetaires) is a novel by Alexandre Dumas, which recounts the adventures of a young man named d'Artagnan after he leaves home to travel to Paris, to join the Musketeers of the Guard. D'Artagnan is not one of the musketeers of the title; those are his friends Athos, Porthos and Aramis, inseparable friends who live by the motto "all for one, one for all" ("tous pour un, un pour tous").