I watched Godzilla King of the Monsters 2019 recently at the theater. I have not purchased the novel version of the movie, but from this YouTube video – What Kong Was Doing During Godzilla: King Of The Monsters REVEALED: https://www.youtube.com/watch?v=Fn05K3kNAos (about 7:08 minutes long), the YouTuber explains what Kong was doing during Godzilla King of the Monsters 2019. I will probably buy the novel from Amazon in the near future just to see how the YouTube explanation above compares with what’s in the novel.