For reasons irrelevant in this context, I only finished reading three books last month, but there are more to come, stay tuned.
The Body in the Silo, 1933 (Miles Bredon #3) by Ronald Knox
Sunset Over Soho, 1943 (Mrs Bradley #16) by Gladys Mithchell
Unravelled Knots: The Teahouse Detective (s. s.), 1925 by Baroness Orczy
A Crime is Afoot 
How can I get this
Not sure what do you mean.