From the Back Cover:
Three Teens. One Hiking Trip. One Huge Problem.
All high school student Heather Miller wants is a chance to make a big impression on Jeff Levinson, the awkward/genius new kid in school. Taking him hiking in the White Mountains with her cool older brother, part-time park ranger Nick, seems like a great idea… until they discover a strange ship, crash-landed in the middle of nowhere.
Aliens have landed. They are bigger, faster, stronger, and have nothing to lose and no one to fear. Stranded in the mountains, miles away from civilization – and help – Heather, Jeff, and Nick are the only ones who can warn Earth of the invasion. If they can survive long enough to get back home.
Universal Threat is a nostalgic Sci-Fi adventure, set in the 1980s, and is best read outdoors by campfire.