Zimbara Goromi by Elena Usnich is a series of e-books available in the App Store and Google Play.
It`s a charity project. Part of the revenue from these books is used to help children in orphanages around the world. The app contains stories, ancient legends, and fairy tales, united by a common story. All the books are illustrated by artists from all over the world, so far the project has involved illustrators from 49 countries. 

I illustrated an excerpt from the 16th book of the series describing the rite of protagonist dedication when he passages through a cave full of magical fire.