Murder at Somerset House by Andrea Penrose (Author)

A welcome interlude of calm has descended on Wrexford and Charlotte, though with three lively young boys in their care and an unconventional circle of friends and allies, quiet rarely lasts long. And sure enough, in the dead of night, an old acquaintance appears and asks for help. His
brother-in-law has been accused of murdering a fellow member of the prestigious Royal Society at their London headquarters, Somerset House.