This exciting new mystery series stars Heather Reed, an impetuous 16-year-old with an unquenchable curiosity that spells T-R-O-U-B-L-E every time. When the Reeds' next door neighbor mysteriously disappears, Heather is determined to find out what happened to him. It's not long before Heather is solving her first mystery--one that involves the CIA and a hidden clue.