"The Blue Cross" is a short story by G. K. Chesterton. It was the first Father Brown short story and also introduces the characters Flambeau and Valentin. It is unique among the Father Brown mysteries in that it does not follow the actions of the Father himself, but rather those of Valentin.

"The Secret Garden" is a short story by G. K. Chesterton. It was originally published in The Story-Teller in October 1910. It is the second story in the collection The Innocence of Father Brown. It is the second story about the French detective Valentin and completes his plot arc, begun in The Blue Cross.

"The Queer Feet" deals with Flambeau wanting to steal the silverware of the members of the Twelve True Fishermen having their annual club dinner at Vernon Hotel. The Vernon Hotel is an exclusive hotel and a "topsy-turvy product" (Chesterton 1994, p. 51).

"The Flying Stars" is one of Chesterton's mysteries featuring Father Brown. It's actually the first of these short stories I've read and I picked it up more because it's a Christmas mystery than to meet Father Brown, even though he is a character I'd like to read more of. The story takes place at an English manor home on Boxing Day. A young lady and the young man who lives next door are present, as is the girl's father, Colonel Adams, a newly arrived uncle and a quite rich godfather.

"The Invisible Man" is a detective story written by G. K. Chesterton which concerns the nature of the crimes committed by one James Welkin, who had been harassing Laura Hope and menacing his romantic rival, Isidore Smythe (whom he would later murder), all without ever being seen.

A stormy evening of olive and silver was closing in, as Father Brown, wrapped in a grey Scotch plaid, came to the end of a grey Scotch valley and beheld the strange castle of Glengyle. It stopped one end of the glen or hollow like a blind alley; and it looked like the end of the world. Rising in steep roofs and spires of sea-green slate in the manner of the old French-Scotch chateaux, it reminded an Englishman of the sinister steeple-hats of witches in fairy tales; and the pine woods that rocked round the green turrets looked, by comparison, as black as numberless flocks of ravens.

Certain of the great roads going north out of London continue far into the country a sort of attenuated and interrupted spectre of a street, with great gaps in the building, but preserving the line. Here will be a group of shops, followed by a fenced field or paddock, and then a famous public-house, and then perhaps a market garden or a nursery garden, and then one large private house, and then another field and another inn, and so on.

Father Brown (Chesterton's sharp-witted detective priest) and Flambeau (the reformed master-thief and Brown's constant companion) are on a little vacation in Norfolk, invited to visit the mysterious Prince Saradine. It doesn't go well. Sure, Flambeau gets some good fishing in, but there's also a duel with rapiers, a couple of murders, a hanging, a case of mistaken identity, an awkward family reunion, and a gang of surly Sicilians.

"The Hammer of God," readers are surprised to learn from Father Brown that the murderer is not a violent madman but rather a very respected member of the community. The Reverend Wilfred Bohun could no longer stand the scandalous behavior of his alcoholic brother Norman, who blasphemed God and humiliated the Reverend Bohun in the eyes of his parishioners. Chesterton states that Wilfred and Norman Bohun belong to an old noble family whose descendants are now mostly "drunkards and dandy degenerates." Rumor has it that there has been "a whisper of insanity" in the Bohun family.

"The Sign of the Broken Sword" is a short story by G. K. Chesterton featuring his famous characters Father Brown and former criminal Flambeau. In the centre of a story is a mysterious death of General Sir Arthur St. Clare, who was hanged on a tree with his broken sword hung round his neck. It is a detective story and throughout it Father Brown reveals to us the mystery of General St. Clare.

Both by calling and conviction Father Brown knew better than most of us that every man is dignified when he is dead. But even he felt a pang of incongruity when he was knocked up at daybreak and told that Sir Aaron Armstrong had been murdered. There was something absurd and unseemly about secret violence in connection with so entirely entertaining and popular a figure. For Sir Aaron Armstrong was entertaining to the point of being comic; and popular in such a manner as to be almost legendary.

The Absence of Mr Glass: "But What about the two voices?" asked Maggie, staring. - "Have you never heard a ventriloquist?" asked Father Brown. "Don't you know they speak first in their natural voice, and then answer themselves in just that shrill, squeaky, unnatural voice that you heard?" - There was a long silence, and Dr Hood regarded the little man who had spoken with a dark and attentive smile. "You are certainly a very ingenious person," he said; "it could not have been done better in a book.

The Paradise of Thieves was published in The Wisdom of Father Brown. This mystery is a real cliff-hanger. The great Muscari, most original of the young Tuscan poets, walked swiftly into his favourite restaurant, which overlooked the Mediterranean, was covered by an awning and fenced by little lemon and orange trees. Waiters in white aprons were already laying out on white tables the insignia of an early and elegant lunch; and this seemed to increase a satisfaction that already touched the top of swagger.

The Duel of Dr. Hirsch is a short story by Gilbert Keith Chesterton: M. Maurice Brun and M. Armand Armagnac were crossing the sunlit Champs Élysées with a kind of vivacious respectability. They were both short, brisk and bold. They both had black beards that did not seem to belong to their faces, after the strange French fashion which makes real hair look like artificial. They were both young. They were both atheists, with a depressing fixity of outlook but great mobility of exposition.

Two men appeared simultaneously at the two ends of a sort of passage running along the side of the Apollo Theatre in the Adelphi. The evening daylight in the streets was large and luminous, opalescent and empty. The passage was comparatively long and dark, so each man could see the other as a mere black silhouette at the other end. Nevertheless, each man knew the other, even in that inky outline; for they were both men of striking appearance and they hated each other.

The Mistake of the Machine is a short story by Gilbert Keith Chesterton: Flambeau and his friend the priest were sitting in the Temple Gardens about sunset; and their neighbourhood or some such accidental influence had turned their talk to matters of legal process. From the problem of the licence in cross-examination, their talk strayed to Roman and mediaeval torture, to the examining magistrate in France and the Third Degree in America.

The Head of Caesar is a short story by Gilbert Keith Chesterton: There is somewhere in Brompton or Kensington an interminable avenue of tall houses, rich but largely empty, that looks like a terrace of tombs. The very steps up to the dark front doors seem as steep as the side of pyramids; one would hesitate to knock at the door, lest it should be opened by a mummy. But a yet more depressing feature in the grey facade is its telescopic length and changeless continuity.

Mr. Edward Nutt, the industrious editor of The Daily Reformer, sat at his desk, opening letters and marking proofs to the merry tune of a typewriter, worked by a vigorous young lady. He was a stoutish, fair man, in his shirt-sleeves; his movements were resolute, his mouth firm and his tones final; but his round, rather babyish blue eyes had a bewildered and even wistful look that rather contradicted all this. Nor indeed was the expression altogether misleading.

"The Perishing of the Pendragons" by G.K. Chesterton is a Father Brown story where Father Brown is invited on a boat trip around the Cornish coast, where he encounters a family called the Pendragons, who are plagued by a mysterious curse tied to a local legend about a Spanish prisoner and a treacherous coastline.