Question: Chris Van Allsburg was the author of which 1985 Caldecott-winning book?

Context paragraphs:
Zathura: Zathura is an illustrated children's book by the American author Chris Van Allsburg as well as the title of a 2005 film based on the book.  Two boys are drawn into an intergalactic adventure when their house is magically hurled through space.  The book is a sequel to "Jumanji", another illustrated book by Van Allsburg, and references are made, both visual and textual, to "Jumanji".

The Z Was Zapped: The Z Was Zapped (ISBN  ) is a picture book by the American author Chris Van Allsburg originally published in 1987 by Houghton Mifflin.  The book tells the story "in 26 acts," each showing how each letter in the alphabet caught some bad luck.  The artwork has a stark look by using black and white pencil drawings.  Each destruction of the letters take place on a proscenium theater stage.

Jumanji: Jumanji is a 1995 American fantasy adventure film directed by Joe Johnston.  It is an adaptation of the 1981 children's book of the same name by Chris Van Allsburg.  The film was written by Allsburg, Greg Taylor, Jonathan Hensleigh and Jim Strain and stars Robin Williams, Bonnie Hunt, Kirsten Dunst, Bradley Pierce, David Alan Grier, Jonathan Hyde, and Bebe Neuwirth.  The special effects were provided by Industrial Light & Magic for computer graphic elements and Amalgamated Dynamics for animatronics components.  The film was dedicated to visual effects supervisor Stephen L. Price, who died before the film's release.

The Polar Express: The Polar Express is a children's book written and illustrated by Chris Van Allsburg and published by Houghton Mifflin in 1985.  The book is now widely considered to be a classic Christmas story for young children although the point has been challenged.  It was praised for its detailed illustrations and calm, relaxing storyline.  For the work Van Allsburg won the annual Caldecott Medal for illustration of an American children's picture book in 1986, his second.

The Polar Express (film): The Polar Express is a 2004 American 3D computer-animated Christmas musical fantasy film based on the 1985 children's book of the same name by Chris Van Allsburg, who served as one of the executive producers on the film.  Written, produced, and directed by Robert Zemeckis, the film features human characters animated using live action motion capture animation.  The film stars Daryl Sabara, Nona Gaye, Jimmy Bennett, and Eddie Deezen, with Tom Hanks in six distinct roles.  The film also included a performance by Tinashe at age 9, who later gained exposure as a pop singer in 2010, as the CGI-model for the female protagonist.

The House on Maple Street: "The House On Maple Street" is a short story written by Stephen King and published in his collection "Nightmares & Dreamscapes".  It was one of several stories first published in that volume.  It has also been recorded as an audio book, read by the author's wife, Tabitha King.  The story was inspired by one of the drawings included in the children's book "The Mysteries of Harris Burdick", by Chris Van Allsburg.

Jumanji (picture book): Jumanji is a 1981 fantasy children's picture book, written and illustrated by the American author Chris Van Allsburg.  It was made into a 1995 film of the same name.  Both the book and the film are about a magical board game that implements real animals and other jungle elements as the game is played; thus the dangers which the players have to overcome in the game also appear in real life.  "Jumanji" star Robin Williams claimed "jumanji" is a Zulu word meaning "many effects," and Van Allsburg does as well.

The Wreck of the Zephyr: The Wreck of the Zephyr is a children's book written and illustrated by the American author Chris Van Allsburg, first published by Houghton Mifflin in March 1983.

Chris Van Allsburg: Chris Van Allsburg (born June 18, 1949) is an American illustrator and writer of children's books.  He has won two Caldecott Medals for U.S. picture book illustration, for "Jumanji" (1981) and "The Polar Express" (1985), both of which he also wrote; both were later adapted as successful motion pictures.  He was also a Caldecott runner-up in 1980 for "The Garden of Abdul Gasazi".  For his contribution as a children's illustrator he was 1986 U.S. nominee for the biennial, international Hans Christian Andersen Award, the highest international recognition for creators of children's books.  He received the honorary degree of Doctor of Humane Letters from the University of Michigan in April 2012.

The Garden of Abdul Gasazi: The Garden of Abdul Gasazi (ISBN  ) is a best-selling children's picture book written in 1979 by the American author Chris Van Allsburg.  "The Garden of Abdul Gasazi" was the first book written by Van Allsburg, for which he won a Caldecott Honor in 1980.

Supporting paragraphs: Chris Van Allsburg The Polar Express
Answer: The Polar Express