Delightful climbing/Murder Mystery

Rainy days continue, and while my training volume is on track, I do find myself grabbing for some page turners off my shelf, to pass the time between thunderstorms. I have read this one before, but memory tells me it's worth another go.

Also, the novel is set around a body which comes out of the snout of theGlacier des Bossons, and of course with climate change, this is an event which becomes ever more frequent.