Some of my older books aren't currently available, but will be back soon, published by JMS Books, and in some cases will eventually be available in paperback again. They will go into Kindle Select for three months, so if you have a subscription to Kindle Unlimited you can read them for free. Or you can buy from Amazon, or the JMS site. After three months they will be published on all the usual ebook stores.
Check out this Release Schedule page for dates of all the books as they become available.