Review: Ashfall by Mike Mullin

Ashfall by Mike Mullin Series: Ashfall Published by Tanglewood Press on October 11th, 2011 Genres: Post Apocalyptic, YA Pages: 466 Goodreads Many visitors to Yellowstone National Park don’t realize that the boiling hot springs and spraying geysers are caused by an underlying supervolcano, so large that the caldera can only be seen by plane or satellite. And by some scientific measurements, it could be overdue for an eruption. For Alex,...