Authors with unpublished stories with illustrations and audi

We are purchasing children's stories of authors with illustrations and audio(Can be recorded by others) - Stories are for children and should be less than 500-600 words in total. - They should be in paragraphs (not exceeding 10-15 max) - They should be fully illustrated. We will be happy to *include your name* as the author in the stories we purchase. Please provide samples. They should be original work. We will need to do a background check for it.