This collection of short stories was published posthumously; Saki was killed in WWI in 1914. It kind of shows that these were leftovers or perhaps early drafts. These stories are really very disappointing next to some of his other stuff. Most of these are really not worth any time at all. There are a few good stories here. The Phantom Luncheon is a really clever humorous piece. Best of all is The Interlopers, a story that finds Saki treading on genuinely horrifying ground. In it, two sworn enemies meet in the woods on a snowy night; but there are others in the wood as well – the final line of this story is really chilling. But on the whole, this collection is super-disappointing. 2 stars.
tl;dr – posthumous short story collection seems to consist of discards and early drafts; only a couple of stories here worth anything at all. 2 stars.