I just went to Amazon looking to buy the Kindle edition of “Tandem Demise” after seeing an April 2018 release date on duffybrown.com. For some reason, I can’t find it at all. I apologize in advance if you have already answered this question. I saw where someone previously asked about the release date when it was November 2017 and it had been moved to April 2018. Has the release date been moved back again? Thank you.