my son doesn't want the religious children's books I have bought so far
I saw a book for children about the saintly and ascetic Elder Joseph the Hesychast. Very interesting and 'crazy', because to let the children read about the terrible ascetic battles against the demons and passions of a saint it's a bit shocking; but maybe a boy could find it cool! There's another book for children about Saint Silouan. Imagine to let children read "Keep thy mind in hell and despair not"?!! wow. But these books are in greek language...
Okay, my books are just Bible stories and the Great Feasts
Maybe if Jesus was riding a train or a truck, my son would be more interested.