16 books in series

Girl Genius

Girl Genius is a 16-book series with 16 primary works first released in 2001 with contributions by Phil Foglio, Kaja Foglio, and 3 others.

Agatha Heterodyne and the Airship City
#2PopularFirst

2001 • 24 Readers • 112 pages • 3.9

Agatha Heterodyne and the Monster Engine (Girl Genius, #3)
#3

2004 • 11 Readers • 128 pages • 4

Girl Genius
#4

2001 • 12 Readers • 102 pages • 4.3

Agatha Heterodyne and the Clockwork Princess (Girl Genius, #5)
#5

2006 • 11 Readers • 109 pages • 4.4

Agatha Heterodyne and the Golden Trilobite (Girl Genius, #6)
#6

2002 • 8 Readers • 150 pages • 4.2

Agatha Heterodyne and the Voice of the Castle (Girl Genius, #7)
#7

2001 • 9 Readers • 128 pages • 4

Agatha Heterodyne and the Chapel of Bones (Girl Genius, #8)
#8

2009 • 10 Readers • 144 pages • 4.6

Agatha Heterodyne and the Heirs of the Storm
#9

2010 • 10 Readers • 144 pages • 4.3

Agatha Heterodyne and the Guardian Muse
#10

2013 • 8 Readers • 144 pages • 4.3

Agatha Heterodyne and the Hammerless Bell
#11

2012 • 6 Readers • 4.5

Agatha Heterodyne and the Siege of Mechanicsburg
#12

2013 • 4 Readers • 4.3

Agatha Heterodyne and the Sleeping City
#13

2014 • 5 Readers • 3.8

The City of Lightning
#15

2016 • 1 Reader • 4

The Incorruptible Library
#16

2017 • 2 Readers • 122 pages • 4.5

Cover 3

Sparks and Monsters

#19

2020 • 2 Readers • 122 pages • 4

Cover 8

The Exorcism Engines

#20

2022 • 1 Reader • 128 pages • 4