"The story collected in this omnibus is also available in full color as Books 1-3 of the Girl Genius series"--Vol. 1, t.p. verso.
v. 1. Beetleburg Clank. Airship city. Monster engine.
OBNB doesn't sell books, but you may be able to find a copy at one of these websites:
Girl genius : a gaslamp fantasy with adventure, romance & mad science by Phil Foglio. ISBN 9781890856403. Published by Airship Entertainment in 2006. Publication and catalogue information, links to buy online and reader comments.
