The Hardy Boys: Secret Files Series
(19 books)


Books in the series:
1.  
Trouble at the Arcade (2010)

2.  
The Missing Mitt (2010)

3.  
Mystery Map (2010)

4.  
Hopping Mad (2010)


6.  
The Bicycle Thief (2011)

7.  
The Disappearing Dog (2011)

8.  
Sports Sabotage (2012)


10.  
A Rockin' Mystery (2012)

11.  
Robot Rumble (2013)


13.  
Balloon Blow-Up (2013)

14.  
Fossil Frenzy (2014)

15.  
Ship of Secrets (2014)

16.  
Camping Chaos (2014)

17.  
The Great Escape (2015)

18.  
Medieval Upheaval (2015)

19.  
The Race Is On (2015)