The title of this collection of short stories is somewhat misleading. There are very few genuine whodunits included. Most, but not all, are, examples of early detective and detective fiction or mystery writing.
There are twenty-seven stories. They cover a wide range of dates: earliest example comes from 1834 - before mystery fiction had developed as a recognisable genre - and the latest from 1935 - well into the golden age of detective writing. Most readers, I'm sure, will find plenty of the stories here engaging and intriguing, but possibly not all of them.
Some of the stories barely seem to justify their inclusion: Alexander Pushkin's `The Queen of Spades' is more a story of the uncanny than anything else; Alexandre Dumas' `Solange'is, similarly, more an example of a ghost story or horror fiction; and `The Crimson Curtain' by Barbey d'Aurevilly - whilst very well told and enjoyable - lacks any crime or detection or - in the sense usually applied to it in this sort of fiction - a mystery. Many of the stories, in fact, appear to have been included for no other reason than the their authors' fame. Charles Dickens, no stranger to the genre, wrote much better works than `Hunted Down' (included here) and so too Robert Louis Stevenson and his story `Markheim' - their literary fame would not have survived so long if they had not.
They are some excellent stories, though. Criminal rogues do very well with examples from E.W Hornburg's Raffles, Leblanc's Arsene Lupin, William Hope Hodgson's Captain Gault and an amusing tale of an American charlatan in `A Personal Magnet'. Satirical or humorous, be it wholly or partially, takes on the form also fare well - examples here include Mark Twain's `The Stolen White Elephant', Arnold Bennett's `Murder!', Thomas Hardy's `The Three Strangers' and `The Biter Bit' by Wilkie Collins.
There are standards of the genre here too - Poe's `Purloined Letter' gets another outing, as does a Sherlock Holmes story. The real highlights of this collection, however, are in the stories by less well remembered writers in the genre. `The Disappearance of Marie Severe' with its blind detective, `The Lenton Croft Robberies', `Popeau Intervenes' (whose detective helped inspire Christie's Poirot), `Locked In' and `The Episode of Torment IV' are all excellent examples.
It is a little sad that they come without any context. A collection covering such a wide range of dates could do with some. The stories might be more enjoyable if given some background, an understanding of the sorts of stories around at the time, or, perhaps, other examples of now forgotten works, such as the Casebook fiction of the nineteenth century.
Such complaints aside, however, this is a strong collection which includes some unusual and interesting works.