Jack Henseleit is a children's author whose favorite potion ingredients are pink eucalyptus blossoms, crystalized honeydew, and sand from under the clothesline. He is the author of The Witching Hours and Cross Bones series, as well as the non-fiction book Family Road Trip Games . A Recipe for Magic Potion is his eleventh book. Natasja Horne is a Dutch artist and illustrator who loves to create stories that help us find our way in life. Her work celebrates texture, shape and playful imperfections made by hand. Colored pencils are her favorite tool, acrylic gouache a close second. She lives in Australia with her husband, two children, a ball crazy French bulldog and three chickens.