Tory Brennan , the great -
niece of Dr. Tempe Brennan , and the
Virals return for a third thrilling
adventure on Loggerhead Island .
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 – 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.