G. K. Chesterton 
Innocence of Father Brown [PDF ebook] 

The star of these stories is Father Brown, a character created by writer G. K. Chesterton. Based on a parish priest who was partially responsible for Chesterton’s conversion to Catholicism in 1922, Brown is a stubby Catholic priest equipped with a large umbrella, a formless outfit and a sharp insight into the human nature. The stories included here are 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, and The Three Tools of Death.