Calvin Tower is a fictional character in the Dark Tower

The Dark Tower (series)

The Dark Tower is a series of books written by American author Stephen King, which incorporates themes from multiple genres, including fantasy, science fantasy, horror and western. It describes a "Gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical. King...

books 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...

. Calvin Tower appears in The Waste Lands, Wolves of the Calla, Song of Susannah, and The Dark Tower.

Plot

Calvin Tower (born Calvin Toren) owns The Manhattan Restaurant of the Mind, a bookstore on 2nd and 53rd in New York City

New York City

New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

. One day, Jake Chambers

Jake Chambers

John "Jake" Chambers is a fictional character in Stephen King's The Dark Tower series of novels. He first appeared in the short story "The Way Station" in The Magazine of Fantasy and Science Fiction in April 1980, which was later compiled as one of the chapters of the first Dark Tower book, The...

 enters the store and buys Charlie the Choo-Choo and Riddle-De-Dum, which both help the Ka-Tet during their confrontation with Blaine the Mono

Blaine the Mono

Blaine the Mono is a fictional character appearing in the books The Dark Tower III: The Waste Lands and The Dark Tower IV: Wizard and Glass of Stephen King's Dark Tower series....

 in The Waste Lands and Wizard and Glass. The Toren family (Dutch for "Tower") are the original owners of the lot on 2nd and 46th in which the Rose grew. In 1977, a reluctant Tower sells the lot to the "Tet Corporation

Tet Corporation

In The Dark Tower series of novels by Stephen King, the Tet Corporation was founded by Roland Deschain and his ka-tet to prevent the destruction of The Rose by stopping the Sombra Corporation from purchasing the vacant lot on which the rose grew....

", represented by Roland Deschain

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...

 and Eddie Dean. In 1981, Calvin and his friend, Aaron Deepneau, saves Father Donald Callahan

Father Callahan

Father Donald Frank Callahan is a fictional character created by Stephen King. He originally appeared in Salem's Lot and later the Dark Tower, appearing in The Dark Tower V: Wolves of the Calla, The Dark Tower VI: Song of Susannah and finally The Dark Tower...

's life from the Hitler Brothers, who had been hired by the low men

Can-toi

The Can-Toi are fictional creatures from Stephen King's Dark Tower series and related works. They are unofficially but more commonly known as low men, as in Low Men in Yellow Coats due to their often garish yellow clothing...

to kill him. Calvin Tower dies of a heart attack in 1990.