Have you heard about Devi Mahatmyam? It is a spiritual religious Hinduism text also known as Chandi Paath/Durga Sapta Shati that's about the glories and origins of Devi.
She is the epitome of feminine energy. On one hand she creates on the other she destroys who is worshipped in many forms throughout the ages.
Here in this simplified English version of the original sanskrit text kids can read a variety of topics. From their they can inculcate knowledge from the ancient mythological stories. It talks about Maha Rishi Markandeya,Prayers to god's and mostly goddess like Durga, lakhami Saraswati,Rishis a lot more. Each chapter is followed by some question and answers that making it a purposeful read.
Recommended to parents who would like their kids to indulge in spiritual knowledge.