Hatter M is a 5-book series with 5 primary works first released in 2004 with contributions by Frank Beddor and Liz Cavalier.
#1 of 5 in Hatter M
2004 • 7 Readers • 176 pages • 4
#3 of 5 in Hatter M
2010 • 2 Readers • 208 pages
#4 of 5 in Hatter M
2013 • 2 Readers • 142 pages
#5 of 5 in Hatter M
2015 • 2 Readers • 160 pages