Through the Wardrobe

Susan has gone through the wardrobe to the real Narnia. She leaves behind her son and friends. Their adventure involves a beautiful princess, a MI6 agent, a steampunk world and yes, elephants. Based on LWW, A Horse and His Boy and The Last Battle. With the cast of characters growing wider and wider, (and some of them exploding), will they ever get together to fight the traitors?