Given that John Dickson Carr — who would have been 110 at the end of the month, folks — published seventy-eight books over a 41 year career that encompassed such joys as Till Death Do Us Part and such nadirs as Papa La-Bas, there’s probably no-one who couldn’t be compared to him at some point in his career. So when Swedish writer Jan Ekström’s 1975 novel Ättestupan is translated into English and the synopsis opens with the tantalising promise ‘Often called the Swedish John Dickson Carr…’ well, you’re going to get a lot of peoples’ attentions even though it doesn’t at first glance really tell you anything.