Those Peter May books are part of a trilogy (The Lewis Trilogy), and the third book is out in January next year..... it may end up being the first full price Kindle book I've ever bought
The Blackhouse & The Lewis Man are both pretty expensive on Kobo right now (at least for me in the UK) which is why I mentioned the Amazon price. Particularly the second book, it's only 20p (or 32 cents on Amazon.com), don't know where you are Synamon, but if available it's got to be well worth picking up at that price!