New Mystery! New Horror!

The Red House Mystery - A.A. Milne
This is a very scarce detective fiction by A.A. Milne, more famous of course as the creator of Winnie-the-Pooh and Christopher Robin. It is one of three such works by Milne, being followed by the murder mystery The Fourth Wall (1928) and the detective drama The Perfect Alibi (1928). The book is a Haycraft-Queen Cornerstone, and drew considerable favourable comment by specialist bibliographer & collector Eric Quayle.

'And an excellent story it is Anthony Gillingham light-heartedly unravels the mystery, standing at the head of a long, and soon extending queue of humorous sleuths who gave a new and refreshing slant to the business of fictional crime. 'What fun Here's a body ' sums up the style; yet this fantasy, with its brilliant dialogue, finely-drawn scenes from the night-life of the 'twenties and credible characters, hold the reader until the final page is turned.' 
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Widdershins - Oliver Onions
George Oliver Onions was a British writer of story collections and over 40 novels. He wrote in a variety of genres, but is perhaps best remembered for his ghost stories, notably the highly-regarded collection "Widdershins" and the widely anthologized novella "The Beckoning Fair One."

Onions wrote several collections of ghost stories, of which the best known is "Widdershins" (1911). It includes the novella "The Beckoning Fair One," widely regarded as one of the best in the genre of horror fiction, especially psychological horror. On the surface, this is a conventional haunted house story: an unsuccessful writer moves into rooms in an otherwise empty house, in the hope that isolation will help his failing creativity. His sensitivity and imagination are enhanced by his seclusion, but his art, his only friend and his sanity are all destroyed in the process. The story can be read as narrating the gradual possession of the protagonist by a mysterious and possessive feminine spirit, or as a realistic description of a psychotic outbreak culminating in catatonia and murder, told from the psychotic subject's point of view. The precise description of the slow disintegration of the protagonist's mind