There’s that man again! Almost at the same time as he released his classic The Hollow Men, John Dickson Carr published another formidable locked room mystery under his pseudonym Carter Dickson. The plot isn’t quite as elaborate as some other efforts, but here he showcases his knack for horror and suspense. His ability to combine intricate story construction with eerie atmospherics is unsurpassed in genre fiction, as this book still demonstrates almost ninety years after its initial release.