This is a easy to use and does exactly what I expect of it. It allows me to take as many pictures as the card in my camera will allow at fixed intervals and fixed exposures - making time lapse and astrophotography much more straightforward. OK there may be more sophisticated devices about bu this was cheap and functional.
A good story and very much in the vogue of Conan-Doyle.
The narrative of the book is pacey and thorough - with Watson emotions coming out strongly throughout. Holmes initially appeared colder than ever - but his humanity was revealed in the end. I was unhappy about one certain aspect - but that would be a spoiler!!