A secret superhero lies beneath Yellowstone National Park…Now in Spanish! In a wonder-filled trip through an iconic destination, discover the spectacular powers of the supervolcano hidden below the ground. WHOOSH! SIZZLE! BLORP! Visit the volcano’s exploding geysers, boiling mud pots, and much more.But what does a hero do best? Help others! The Yellowstone Supervolcano doesn’t just dazzle tourists. Learn how its superpowers support a thriving ecosy...