This game requires an interpreter program - refer to the game's documentation for details. (Compressed with the Unix-style .tar.gz "tarball" format. Free unpacking tools are available for most platforms.)
A train journey begins your quest for the golden idol left by Major Johnston-Smythe when he died. Other treasure hunters have tried before you, most of them have never been seen again... [--blurb from The Z-Files Catalogue]
According to the documentation, this Adams-era game concerns your quest to recover a golden figurine left behind by a previous treasure hunter. The game feels a lot more like housebreaking, however, and is really just a traditional treasure hunt in a new guise. Still, the puzzles are nice and logical and it rarely kills you off without warning. The title is obviously meant to recall the Agatha Christie novel, but the two have absolutely nothing in common.