Gilbert Jones—Milo Motion

Gilbert Jones—Milo Motion is an antagonistic relationship built around an intellectual slight that Jones turned into a criminal frame-up. Milo’s criticism of the books discussed at Bloodhounds meetings gave Jones a personal reason to single him out; the stolen Penny Black and the switched padlock then became instruments of revenge. Jones’s scheme was meant to demonstrate his ingenuity, but its exposure also reveals how a contest of ideas became entangled with murder.

The slight and the choice of a target

When Peter Diamond asks why Jones chose Milo as the person on whom to offload the stolen stamp, he raises the possibility that something said at the meetings had caused particular offence. Jones confirms that Milo had described the books as written for people with sick minds. The exchange makes the motive more specific than a general wish to challenge the Bloodhounds: Jones remembers Milo’s judgment and converts it into a personal grievance.

Jones’s choice also gives the conflict an ironic shape. Milo’s criticism concerned violence in the books, while Jones responds not with an argument but with a real crime designed to implicate him. The novel does not establish that Milo intended his remark as an attack on Jones personally; what matters to the relationship is that Jones treats it as a sufficient provocation. His revenge therefore exposes a disparity between the apparent scale of the offence and the elaborate, dangerous response.

Making Milo the fall guy

Jones’s plan joined the Penny Black theft to a locked-room appearance. He stole the stamp and arranged for it to turn up at a Bloodhounds meeting, a conspicuous stunt that he later accepted responsibility for. He also introduced a padlock switch into the apparent puzzle aboard Milo Motion’s boat. As Peter Diamond lays out the mechanism, Jones obtained an extra padlock from Foxton’s and switched it while Milo was aboard, so Jones could unlock it later. The alteration made the boat’s security part of the deception and helped direct suspicion toward Milo.

The two devices served different but connected purposes. The stamp supplied the sensational object around which the challenge revolved; the padlock made the boat seem to present a locked-room problem. Together they offered Jones a way to display that he could outwit the group while leaving Milo to bear the suspicion. Jones’s later insistence that none of the Bloodhounds had worked out the switch confirms the competitive dimension of his revenge: he wanted both to punish Milo and to be recognised as the cleverer player.

The scheme breaks at the boatyard

Jones’s control of the plot failed when Sid Towers became curious about the locked-room puzzle and drove to inspect the narrowboat. Sid arrived as Jones was replacing the original padlock. Jones heard him coming, hid inside the cabin, and took a windlass as a weapon. The concealment and weapon mark the point at which the plan to implicate Milo became a physical confrontation.

Jones struck Sid over the head from behind. In his later account, he said that he wanted to make his getaway and had not meant to kill him; Sid had not seen him. Peter Diamond’s reconstruction allows that Jones may initially have intended only to knock Sid out, but the blow killed him. The distinction between intended escape and actual consequence does not undo the connection to Milo: the killing follows directly from the machinery Jones had set in motion to frame him, and everything afterward was undertaken to cover up what had happened.

What the relationship reveals

Milo is not shown directing a campaign against Jones. The evidence instead presents him as the chosen target of Jones’s retaliation, selected because of a disparaging judgment voiced at the meetings. That asymmetry matters: Jones’s elaborate revenge takes an opinion about fictional violence and answers it through theft, deception, and a fatal blow.

The relationship also binds the book’s puzzle and crime strands together. Jones’s padlock trick is ingenious enough to sustain the locked-room appearance, but it depends on controlling who knows what and when. Sid’s unscheduled curiosity disrupts that control; the resulting death turns Jones’s attempt to make Milo look guilty into a larger concealment. The contest Jones began as proof of superiority thus ends by exposing its cost: Milo is framed, Sid is killed, and Jones’s claim to cleverness becomes evidence against him.