The Powers Beyond Their Steam series
While you can purchase the first book in the series, The Pterrible Pteranodon, from many places online, I encourage you to do so through one of your local, independent book stores. IndieBound.org will help you find a local indie bookseller and allow you to order my book through them online.However, there's always the Amazon option for both the hardback & paperback editions if you prefer.
The Pterrible PteranodonA steam-driven mechanical pteranodon is out of control over Victorian-era London and the Queen is not amused.
Chapters are available as free audio files at the following podcasting sites: