I read a number of this series a number of years ago, and then found this one on a giveaway library shelf during the Coranavirus pandemic and decided to pick it up. Honestly, I should probably have let it stay there. The mystery isn't that much of a mystery - there are other parts of this book that are more mysterious. The author only seems to be able to distinguish the voice of his young people from their elders by sprinkling their speech with like totally all the vocal fillers you can think of, you know. And these are Notre Dame educated young people, not Valley girls.