Erin, Mateo, and Noel started the Star Gazers to uncover the truth about life beyond the stars. Convinced that Earth is being visited by extraterrestrial travelers, they investigate a series of top secret files originating from Nellis Air Force Base, which happens to be where Erin's mother works. While conducting research on the underwater base Sycamore Knoll, the kids meet a like-minded youth and join forces to gain access to the facility, only to discover that there's more to their new friend than meets the eye. This graphic novel series includes STEM-focused sidebars and callouts, activity, character profiles, original illustrations, table of contents, glossary, and index.