The Polar Express by Chris Van Allsburg, 1985.

One Christmas Eve, a young boy is lying awake in bed when he hears strange sounds.  When he looks out of his window, he is astonished to see a train outside of his house, where there aren’t any train tracks.  He goes outside to investigate, and the train conductor tells him that the train is heading to the North Pole and asks the boy if he wants to come.

The boy (who is never named) believes in Santa Claus even though some of his friends no longer do, and he gets on board the train.  The train is filled with other children, singing Christmas songs, eating candy, and drinking hot cocoa.

After a long trip over mountains and through forests, they arrive at Santa’s city at the North Pole, where they get to take part in a ceremony to give the first gift of Christmas.  Out of all the children from the train, the boy who narrates the story is chosen to receive the first gift.  He can ask for anything he wants for Christmas, but he asks for a bell from Santa’s sleigh as proof of his adventures and Santa’s existence.

When the children get on the train to go back home, the boy seems to have lost the bell because of a hole in his pocket, and he is sad.  However, the bell reappears on Christmas morning as a mysterious extra present under the tree.  The boy’s parents can’t hear the bell ring, and they think it’s broken, but the boy and his sister, Sarah, can hear it.  The boy says when he and his sister grew up, Sarah eventually reached the point where she could no longer hear the bell, but he still can because only people who believe in Santa can hear the bells on his sleigh.

The book is a Caldecott Medal winner, and it has become a Christmas classic!  Some places that have trains hold special Polar Express train rides where they decorate the trains with Christmas decorations and try to re-create the ride from the book.  There is also a movie version of the book, although the story in the movie includes incidents which weren’t in the book to make the movie longer and more dramatic.  The original story was very calm and low-key, although still magical, the kind of thing that you could easily read to a child in bed on Christmas Eve.

Most of what Internet Archive has about The Polar Express is related to the movie, but there is also an audio version of the original book. For the benefit of teachers and homeschooling parents, there is also A Guide for Using The Polar Express in the Classroom on Internet Archive.