Three kids. One legendary cave. Zero idea what they're getting into.It's 1962, and while the world holds its breath during the Cuban Missile Crisis, three clever kids in Philadelphia go looking for a place to hide, just in case the worst happens. What do they find? A mysterious cave that's not just old...it's enchanted. Once home to a group of 18th-century stargazing mystics who came to America to wait out the apocalypse, Kelpius Cave is more than a forgotten ruin, it's a portal full of secrets, symbols, and slightly eccentric ghosts. Soon, the kids are caught in a whirlwind of magical messages, wise (and sometimes grumpy) historical figures, and a countdown that has nothing to do with missiles, and everything to do with waking up the past. Fun, fast-paced, and full of twists, this is a time-travel tale with heart, humor, and a whole lot of history.This book is a perfect opportunity for middle school students to understand the past, and make sense of the present. In this story history comes alive for the young reader and sometimes in surprising ways.