Tory and the rest of the Virals are put to the ultimate test when they
find a geocache containing an ornate puzzle box. Shelton decodes the
cipher inside, only to find more tantalizing clues left by The
Gamemaster. A second, greater geocache is within reach--if the Virals
are up to the challenge. But the hunt takes a dark turn when Tory
locates the other box--it contains a fake bomb, along with a sinister
proposal from The Gamemaster. Now, the real game has begun: another bomb
is out there--a real one--and the clock is ticking.