G. K. Chesterton 
The Innocence of Father Brown [EPUB ebook] 

First published in 1911,  
The Innocence of Father Brown is the first of G. K. Chesterton’s mystery anthologies featuring his eponymous Roman Catholic sleuth. These mysteries are the original source material for the current hit BBC TV show Father Brown starring Mark Williams. Chesterton’s priest-sleuth was loosely based on Father John O’Connor, a parish priest in Bradford, who was involved in Chesterton’s conversion to Catholicism in 1922. By bringing murder and mayhem into the genteel setting of a village parish, Chesterton pioneered the ‘cozy’ mystery genre which Agatha Christie and others would further develop in subsequent decades.
There are twelve Father Brown mysteries in this collection:
The Blue Cross.
The Secret Garden.
The Queer Feet.
The Flying Stars.
The Invisible Man.
The Honour of Israel Gow.
The Wrong Shape.
The Sins of Prince Saradine.
The Hammer of God.
The Eye of Apollo.
The Sign of the Broken Sword.
The Three Tools of Death.