Among the many lesser-known Tintin-related projects and fragments, Tintin and the Thermozero stands out as a particularly intriguing case of an unfinished collaboration.
The project began with a story suggestion from another contributor. Hergé himself then produced a small number of preliminary sketches, exploring the visual direction and early structure of the adventure. Alongside these drawings, a full story outline was also developed, although the exact division of creative responsibility between Hergé and the original proposer is unclear to me.
For a long time, this material remained difficult to access. The full outline, along with additional sketches, is not widely known.
In preparing this post, I have translated the surviving outline and related material into English.
Even in its incomplete form, Thermozero shows promise as a concept. The combination of early Hergé sketches and structured story planning makes it possible to imagine how it could have evolved into a fully realized adventure, fitting alongside the more experimental corners of the Tintin universe.



