xreactivity

a measure of relatedness between two antigenic substances

Unnatural Death

Unnatural Death: A Lord Peter Wimsey Mystery - Ian Carmichael, Dorothy L. Sayers

 

It's been awhile since I indulged in a Peter Wimsey mystery. These days I seem to prefer the ones without Harriet Vane. This audiobook version was expertly narrated by Ian Carmichael. Such a treat!