Detective-Inspector Napoleon Bonaparte agrees to help a colleague in the matter of the disappearance of farmer George Loftus. Loftus car was found abandoned near the world s longest fence, in the wheat country of Western Australia. Bony immediately suspects murder but can t find the evidence to confirm it. Loftus wife seems concerned about him, but his handsome hired man is an enigma. It is t until Bony becomes absorbed in the second mystery of Mr Jelly, an amateur crimilogist who himself often disappears on secret business, that he finds the key to the strange goings-on in this seemingly ordinary farming community.