Many Christians express horror at Magnus Chase and the Gods of Asgard, Book 2 The Hammer of Thor promoting LGBT especially for underage children. Yet I think the biggest issue is that there is a complete absence of "spirit" now in Riordan's best selling YA novels, spirit--a word and power emphasized by the magical lady in the lake Mariel in the Mindwar realm; she helps the protagonist Rick Dial conquer his weaknesses as much as the villains in this page turner.
Exciting but also uplifting, Klavan's novel is an answer to readers and parents who want to read an exciting novel that isn't Social Justice Warrior preaching. Any book that doesn't just emphasize violence as the solution, that helps readers understanding moral courage is as important as physical strength, that does not denigrate religious faith, especially Christian, is to be commended.
And the novel is fun; it doesn't lecture so much as subtly inform and challenge our mindset, so much influenced by secular, anti-spiritual and anti-faith mass media. Parents, don't complain about Riordan. Support a writer who is his opposite. And young adults will have fun.