The first three periods went as usual for the students at Flagstaff Middle School. Fourth period promised equal predictability, that is, until an earthquake sent the students scurrying underneath their desks. A half-hour's drive into the Coconino national Forest, the epicenter of the 4.2 quake, at the top of an arroyo on Humphrey Peak, a small fissure opened to reveal a heretofore unknown cave...a small cavern, actually. Such an enticement for exploration could not be passed by for three eight-grade students, Alisa Seegmiller, Alex Novotny, and Seth Patterson, out for an exciting 2-hour ATV ride. This ride, however, would propel them into an adventure, the proportions of which would stretch time, space and their own teen-aged imaginations to the breaking point.