The Mage Errant Publisher’s Pack ebook (which contains books 1&2) is free through Sunday, March 22nd! Just in case you need something to read while you’re self-quarantining to hide from COVID-19. (I’m quarantined for real, at the moment! Whee!)
In addition, I recently posted a list of epidemiological reading options on reddit, if this whole pandemic situation has you interested in learning more about epidemiology, or reading some epidemiological fiction.