Camp Half-Blood Chronicles is a 33-book series with 15 primary works first released in 1962 with contributions by Rick Riordan, Leah Wilson, and 6 others.
2016 • 31 Readers • 224 pages • 3.8
2012 • 84 Readers • 244 pages • 3.9
2009 • 165 Readers • 160 pages • 3.7
2015 • 5 Readers • 189 pages • 4
2010 • 4 Readers • 2.5
2013 • 2 Readers • 4
2014 • 97 Readers • 336 pages • 4.3
2015 • 66 Readers • 336 pages • 4.4
2015 • 1 Reader • 184 pages • 2
2010 • 40 Readers • 128 pages • 3.4
2017 • 9 Readers • 196 pages • 4.3
2013 • 8 Readers • 128 pages • 4.1