13 books in series
Hardy Boys: Undercover Brothers
Hardy Boys: Undercover Brothers is a 13-book series with 13 primary works first released in 2005 with contributions by Franklin W. Dixon.
#2
2005 • 1 Reader
#4
2005 • 1 Reader
#6
2005 • 166 pages
#13
2010 • 176 pages
#14
2007 • 160 pages
#15
2007 • 1 Reader • 182 pages • 4
#17
2007 • 182 pages
#31
2009 • 2 Readers • 3.5
#32
2009 • 1 Reader • 4
#33
2010 • 1 Reader • 4
#34
2010 • 1 Reader
#35
2010 • 1 Reader
#36
2011 • 1 Reader