There isn't a lot for kids on church fathers, so I was excited to incorporate this series "Heroes of the Faith" into our year on church history. The illustrations are good, and the tie in with the other two books in the series (Ignatius and Polycarp) provides a welcome illustration of how each generation must pass on the faith to the next for the gospel to survive. 
 This particular title is by far the weakest in the series. The author endeavors to explain concepts from Irenaeus' book "Against All False Teaching". If Irenaeus' title and work are expansive, this book would fit right with them. We could hardly get through reading it. It was too complicated and ideas based for a young audience, without enough facts to tell an interesting story. The addition of the letter to Flovius only served to muddy the waters further and make the book EVEN LONGER. 
 The weaknesses in the series (see other reviews) prevent me from recommending you purchase it, which is really too bad. A library check out would be the best way to go.