It started out as a Magical Mission: Impossible heist meets CS Lewis's The Last Battle, with a focus on what life is like for the Pevensies when their adventures in Narnia came to an end.

Really this whole series is just a love letter to the Narnia and Harry Potter series and the kids who read them that are now grown up. I'm sad that it took me years to read this series, but I'm so happy I finally did.