Mark McNabb has written at least 2 books. Their most popular book is Agatha Heterodyne and the Monster Engine (Girl Genius, #3) with 11 saves with an average rating of 4⭐.
#3 of 17 in Girl Genius
2004 • 11 Readers • 128 pages • 4
#1-3 of 17 in Girl Genius
2012 • 4 Readers • 319 pages • 4.7