To help your readers, you need to include details about the things you imagine. In Revolutionary War on Wednesday , Jack and Annie travel to the time of the Revolutionary War. When the tree house lands, the wind is blowing hard. Jack can see his breath. The sky is gray and heavy with clouds.
Snowflakes blow into the tree house.
The wind, Jack's breath, the gray sky, the clouds, and the snowflakes are all details about the weather. They make the winter night come alive for the reader. You can use details to make anything in your story come alive for your readers. Pick a place for a Magic Tree House adventure. You might be surprised how many different details you can use to describe something.