What’s that Number 6 looking at? He’s just tried to follow Number 240 into the Town Hall, but as the gardener tells Number 6, it’s fussy who it lets in, hence the electrical force field. Perhaps Number 240 was wearing an Electro Pass which synchronized with the alarm system and let her through! But I digress. Perhaps as Number 6 walked away, the gardener said something under his breath and Number 6 heard him. Or the cyclist rang her bell and that made Number 6 look back over his shoulder.
Be seeing you, but not if Number 240 sees you first!