The tenth in the Fleming Stone series of mystery novels, ‘The Diamond Pin’ is a classic whodunnit. Fabulously wealthy Ursula Pell is fond of playing tricks on her family and friends – much to her delight and their distaste. They dare not protest, for fear of being left out of her sizeable will. One day however, her niece Iris reaches breaking point. When Ursula is found murdered in a locked room, is Iris to blame? Or is there more to the crime than meets the eye? Detective Fleming Stone is on hand to help get to the bottom of it. A thrilling crime mystery from popular American author Carolyn Wells.

Carolyn Wells (1862-1942) was a prolific American novelist and poet, best known for her children’s literature, mystery novels and humorous verse. Born in New Jersey, following school Wells worked as a librarian where she developed her love of reading, and her first book ‘At the Sign of the Sphinx’ was published in 1896. From 1900 Wells dedicated herself to her literary career, writing over 170 novels in total across a range of genres. Some of her most loved works include the ‘Patty Fairfield’ and ‘Marjorie Maynard’ series for girls, as well as the ‘Fleming Stone’ mystery series for adults. Wells is also well-known for her humorous nonsense verse, and was a frequent contributor of verse to magazines. She published an autobiography ‘The Rest of my Life’ in 1937. Wells died in New York City in 1942.