Click here for the free download of the Kindle version from Amazon (US and UK only)
Click here for the free download in either Kindle (Mobi) or ePub (anywhere in the world)
How do I read them?
You may have to download an eBook reader to your device. Which one, would depend on if you're using an iPhone (iOS) , an Android, or reading it off your PC; and also whether you want the Amazon Kindle edition or an ePub edition. All the following are free downloads:

Rats in the Cellar is free at either or at Amazon Kindle. However at Amazon it's only free for U.S. and U.K. customers. If you live elsewhere you can still get it free by clicking on the  link labelled, and selecting the MOBI format option. To get that installed on your Kindle, just email it as an attachment to your Kindle email. You can find our Kindle email on your Amazon account, but usually it's something like: <Amazon username>