#2
#3
#2 of 104 in The Hardy Boys
1927 • 16 Readers • 193 pages • 3.1
#4
#5
#5 of 104 in The Hardy Boys
1920 • 9 Readers • 194 pages • 3.7
#6
#9 of 104 in The Hardy Boys
1930 • 6 Readers • 158 pages • 3
#7
#7 of 104 in The Hardy Boys
1929 • 4 Readers • 175 pages • 3
#8
#6 of 104 in The Hardy Boys
1928 • 9 Readers • 178 pages • 3
#9
#10 of 104 in The Hardy Boys
1931 • 9 Readers • 158 pages • 3.5
#10
#11 of 104 in The Hardy Boys
1932 • 8 Readers • 174 pages • 3.6
#11
#13
#15 of 104 in The Hardy Boys
1936 • 5 Readers • 175 pages • 3.3
#14
#19 of 104 in The Hardy Boys
1940 • 7 Readers • 159 pages • 3.4
#15
#21 of 104 in The Hardy Boys
1942 • 5 Readers • 192 pages • 3
#16
#20 of 104 in The Hardy Boys
1941 • 5 Readers • 193 pages • 3
#17
4 Readers • 3
#18
#19
#24 of 104 in The Hardy Boys
1945 • 4 Readers • 192 pages • 3
#20
#27 of 104 in The Hardy Boys
1948 • 5 Readers • 192 pages • 3
#21
1950 • 4 Readers • 210 pages • 3
#22
#36 of 104 in The Hardy Boys
1956 • 6 Readers • 178 pages • 3.3
#23
#37 of 104 in The Hardy Boys
1957 • 5 Readers • 177 pages • 3.3
#24
#35 of 104 in The Hardy Boys
1955 • 5 Readers • 214 pages • 3
#25
#39 of 104 in The Hardy Boys
1959 • 4 Readers • 160 pages • 3
#26
1962 • 6 Readers • 3
#27
#42 of 104 in The Hardy Boys
1962 • 4 Readers • 192 pages • 3
#28
#29
#45 of 104 in The Hardy Boys
1965 • 4 Readers • 160 pages • 3
#30
#46 of 104 in The Hardy Boys
1967 • 5 Readers • 158 pages • 2.7
#31
#55 of 104 in The Hardy Boys
1975 • 3 Readers • 192 pages • 3
#32
#54 of 104 in The Hardy Boys
1975 • 5 Readers • 193 pages • 3.3
#33
4 Readers • 3
#34
#35
#36
#37
#64 of 104 in The Hardy Boys
1980 • 3 Readers • 181 pages • 3
#38
#39
1999 • 2 Readers • 263 pages
#40
1999 • 96 Readers • 311 pages • 3.9
#41
7 Readers • 3.7
#42
2007 • 209 Readers • 414 pages • 3.6
#43
2012 • 31 Readers • 308 pages • 4.1
#44
2015 • 24 Readers • 672 pages • 3.7
#45
2007 • 25 Readers • 294 pages • 3.6
#46
302 Readers • 4.5
#47
#4 of 4 in El cementerio de los libros olvidados
2014 • 87 Readers • 925 pages • 4.3
#48
2019 • 370 pages
#49
#50
2021 • 18 Readers • 176 pages • 4.3
#51
