Book excerpt: The Monster Hunters head to Nevada where their destination is Lake Tahoe. While seeking a monster called Tahoe Tessie, they discover how much damage invasive species can do. A close call underwater shows the team the importance of scientific research, and a glimpse of Tahoe Tessie! Aligned to Common Core standards and correlated to state standards. Calico is an imprint of Magic Wagon, a division of ABDO.