Think about what children are interested in. As a basic rule the more magical and fantastic the better. But your story must have an element of realism. Use proper words. Decide if they are here to stay.
Publication can take up to two years, sometimes more.
If there are any words or phrases they get stuck on, highlight them and later go through and change them to shorter or more appropriate words. After a few changes, and possibly a few re-writes, if you are happy with the finished story now is the time to seek a publisher. First do some research and look for your favourite books on the shelves and note the publisher s name and address. Never send your story to two or more publishers at one time. Expect to wait at least six months before querying the fate of your story write do not telephone.