The Hallowe'en Special is a magazine story.
Thomas wishes he could dress up for the Halloween party which is being held at the ruined castle. When he is collecting the children, a traffic cone blows from a lorry onto Thomas' whistle. Stephen and Bridget think the cone looks like a witch's hat.
- The title spells Halloween in the traditional way: Hallowe'en.
- It is revealed that Stephen and Bridget live on the Mainland.
- Guy Fawkes Night and All Saints Day are mentioned.
- In the last illustration, Thomas' siderods are painted blue.