Recommended Read-Throne of Fire

In core we have been studying heroes, gods and monsters. Due to this, I would like to recommend the Throne of Fire. It is a novel about two children, a sister and a brother, who lived apart for most of their lives, until three months ago. They are teaching magic to other kids and learn that they have to save the world from the Egyptian Lord of Chaos, Apofis. The children have four days to find the Book of Ra, put it together, reawaken Ra and stop Apofis. They set out on an adventure, facing death at almost every moment. they fight gods, monster and other magicians, while dealing with family, friendship and occasionally, love.