Emma Sharpe is suspicious when retired Special Agent Gordon Wheelock, a legend in FBI art crimes, drops by her Boston office for a visit. Gordy says he's heard rumors about stolen ancient mosaics, involving Oliver York, an unrepentant English art thief. Gordy and Emma's grandfather, a renowned private art detective, chased Oliver for a decade but never had enough to prosecute. When evidence at a murder points to a deadly conspiracy, deep cover agent Colin Donovan knows he can't stay out of a case where Emma's loyalties are in question.