Patrick Danville is a fictional character created by Stephen King

Stephen King

Stephen Edwin King is an American author of contemporary horror, suspense, science fiction and fantasy fiction. His books have sold more than 350 million copies and have been adapted into a number of feature films, television movies and comic books...

, featured in the novels Insomnia

Insomnia (novel)

Insomnia is a novel written by Stephen King and first published in 1994. Like It and Dreamcatcher, its setting is the fictional town of Derry, Maine. The original hardcover edition was issued with dust jackets in two complementary designs...

and The Dark Tower.

Insomnia

Patrick was introduced as a child in Insomnia, a budding artist who was destined to die saving the lives of two men, one of whom must not die. He would often draw pictures of The Gunslinger

Roland Deschain

Roland Deschain of Gilead is a fictional character, the protagonist and antihero of Stephen King's The Dark Tower series. He is the son of Steven and Gabrielle Deschain and is descended from a long line of "gunslingers", peacekeepers and diplomats of Roland's society...

's world; namely he drew a rose, which is very important in the Dark Tower Saga. His life was threatened by the Crimson King

Crimson King

The Crimson King, also commonly known as Los', is a fictional character created by Stephen King. He is the antagonist in the novel Insomnia the main villain due to a plot twist in Black House and one of the main villains in the latter half of Stephen King's Dark Tower series.-Fictional...

 twice in Insomnia, first by the anti-abortion group Daily Bread, then by research chemist-turned-kamikaze

Kamikaze

The were suicide attacks by military aviators from the Empire of Japan against Allied naval vessels in the closing stages of the Pacific campaign of World War II, designed to destroy as many warships as possible....

 pilot Ed Deepneau. However, both of these attempts were thwarted by the novel's protagonist, Ralph Roberts.

The Dark Tower

When he returns to the The Dark Tower series, he is adult and an extremely gifted artist. Roland and Susannah discover Patrick in the basement of Dandelo's house on Tower Road. He has been held captive for some time, his tongue ripped out. Dandelo had been feeding on Patrick's emotions for sustenance. Once he escapes from Dandelo, he goes to the tower with Roland, Oy and Susannah Dean. Soon they find out that his drawings are so masterfully crafted that they can come true at any time, but only if he draws them perfectly.

With Susannah, he erases a possibly cancer

Cancer

Cancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. The cancer may also spread to more distant parts of the...

ous pimple on her face that was brought about by prolonged exposure to the poisonous environment of Thunderclap and the Badlands. Susannah has been having dreams about meeting her dead husband, Eddie and Jake again in another version of New York

New York

New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

. She realizes that these dreams mean she needs to leave Roland's world so he can finish his journey alone. Patrick draws her a door that opens in the alternate version of New York, where she finds Eddie and Jake waiting for her. Patrick and Roland then travel on.

Not long afterward, Patrick is called for lookout, because Roland is sure that his son, Mordred

Mordred Deschain

Mordred Deschain of Discordia is a fictional character from Stephen King's The Dark Tower series of novels and comic books. He is one of the major antagonists of The Dark Tower VII: The Dark Tower, seeking to destroy his father Roland and his ka-tet...

, is nearby. Roland makes Patrick swear to stay awake, and look after him. However, the Crimson King begins to hypnotize

Hypnosis

Hypnosis is "a trance state characterized by extreme suggestibility, relaxation and heightened imagination."It is a mental state or imaginative role-enactment . It is usually induced by a procedure known as a hypnotic induction, which is commonly composed of a long series of preliminary...

 him from the Dark Tower. Soon Patrick is asleep, and Mordred strikes at the two. He does not see Oy, however, and the Billybumbler strikes at him. But when he is captured by Mordred, he yelps and wakes Roland up. Oy is killed, and Roland puts three bullets in Mordred's head.

Roland is grief-stricken, and partially blames Patrick. Patrick redeems himself, however, because the next day they make it to the Dark Tower. Whenever they get close enough, the Crimson King begins to attack them with guided grenades ("Sneetches") which Roland quickly deflects with his revolver.

Using a single rose and the Gunslinger's blood, Patricks sits down and draws an amazingly accurate picture of the Crimson King. Working the red into the Crimson King's eyes makes them impossible to erase, but Patrick erases the rest of him, leaving the eyes imprisoned on the Dark Tower's balcony. With the Crimson King defeated, Roland gives Patrick all of his food, and enters the Dark Tower. Nobody knows where Patrick went.

The Unfulfilled Prophecy

In Insomnia, it is clearly stated that Patrick would save two men shortly before his death, and that one of these men must not die in order to maintain cosmic balance. In the seventh Dark Tower novel, Roland visits our world where he meets the "Calvins" (possibly named after Calvin Tower

Calvin Tower

Calvin Tower is a fictional character in the Dark Tower books by Stephen King. Calvin Tower appears in The Waste Lands, Wolves of the Calla, Song of Susannah, and The Dark Tower.-Plot:...

, a bookseller who owned the vacant lot of the Rose), a group of scholars who analyze the Dark Tower series and its related novels. They tell Roland the plot of Insomnia, and speculate that Gan's song that King transcribes when writing his novels was possibly muddled and that Insomnia may not be all that accurate. At the end of the novel, while Patrick is very important to Roland's quest, he does not die saving two people.