1 Out of the Blue

2 Old Friends, New Enemies

3 Tips and Tales

4 Hard Headlines

5 Dangerous Curves

6 Nowhere to Go but Down

7 Tall Stories

8 Big Brother Is Watching

9 Invasion

10 Nowhere Is Safe

11 "SEARCH"

12 Escape

13 Program for Destruction

14 Ground Zero

15 Subject Neutralized

16 All Clear

AN UNDERCOVER STORY BRINGS
CRIME OUT IN THE OPEN!

Frank and Joe's aunt Gertrude leads a pretty quiet life -- until an old high school friend turns up in Bayport. Clayton Silvers once had a distinguished career as an investigative reporter. Then he was accused of falsifying some of his articles and even taking money to expose his subjects. Now he's in town, working on the explosive story that he says will be his comeback.
Aunt Gertrude staunchly maintains her friend's innocence, but the Hardys aren't so sure that Silvers is a sterling character. Since he's been around, the danger level has escalated. Now the Hardys are the ones being watched and stalked, their every move monitored. Silvers is playing a high-stakes game, and the Hardys don't want to be on the losing end!

Franklin W. Dixon is the author of the ever-popular Hardy Boys books.