Boy From Makkah and Isabella

My 10 yr old son read A Boy From Makkah and enjoyed it. Its story about a boy who learns to read quran from a woman who later becomes ill. He also enjoyed the Meat Eating Vegetarian. My 11 yr old daughter read half of Isabella and said it was really boring. I looked at it and it seems like an adult book more than a kid's book. My 12 yr old son read Ahmed Deen and the Jinn at Shaolin and LOVED it! I have two more islamic books for them to read; Layla Deen  and the Popularity Contest and The Visitors. I'll let you know if they liked them insha Allah. All these books were suggested to me by Ummah Reads.