Who wrote the book Wind In Door?

There is no book titled "Wind In Door." It is possible you have a typo or are misremembering the title.

Perhaps you are thinking of:

* "The Wind in the Willows" by Kenneth Grahame. It's a classic children's book about a group of animal friends who have adventures in the English countryside.

* "The Wind in the Door" by Madeleine L'Engle, the second book in her "A Wrinkle in Time" series. It features the Murry children exploring another dimension, this time focused on the human body.

Could you please clarify the book title you are asking about?